Home / 840,086,149.29-1,159,319,096.15-463,742,955.69

Finding the Fourth Proportional to 840,086,149.29, 1,159,319,096.15 and 463,742,955.69

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Solution

The fourth proportional to 840,086,149.29, 1,159,319,096.15 and 463,742,955.69 is: 639,965,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,086,149.29 : 1,159,319,096.15 = 463,742,955.69 : x
  2. Step 2: Convert to fraction form
    840,086,149.29/1,159,319,096.15 = 463,742,955.69/x
  3. Step 3: Cross multiply
    840,086,149.29x = 1,159,319,096.15 × 463,742,955.69
  4. Step 4: Simplify right side
    840,086,149.29x = 537,626,064,234,141,568
  5. Step 5: Solve for x
    x = 537,626,064,234,141,568/840,086,149.29
  6. Step 6: Final answer
    x = 639,965,394.84

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Double scale
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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.