Home / 27,781,668,443.81-38,339,051,141.76-15,094,615,985.75

Finding the Fourth Proportional to 27,781,668,443.81, 38,339,051,141.76 and 15,094,615,985.75

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Solution

The fourth proportional to 27,781,668,443.81, 38,339,051,141.76 and 15,094,615,985.75 is: 20,830,759,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781,668,443.81 : 38,339,051,141.76 = 15,094,615,985.75 : x
  2. Step 2: Convert to fraction form
    27,781,668,443.81/38,339,051,141.76 = 15,094,615,985.75/x
  3. Step 3: Cross multiply
    27,781,668,443.81x = 38,339,051,141.76 × 15,094,615,985.75
  4. Step 4: Simplify right side
    27,781,668,443.81x = 578,713,254,242,897,297,408
  5. Step 5: Solve for x
    x = 578,713,254,242,897,297,408/27,781,668,443.81
  6. Step 6: Final answer
    x = 20,830,759,513.72

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Double scale
Find fourth proportional to 27,781,668,444.81, 38,339,051,143.14 and 15,094,615,986.75
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.