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Finding the Fourth Proportional to 286,501,615.20, 429,752,422.80 and 286,501,615.20

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Solution

The fourth proportional to 286,501,615.20, 429,752,422.80 and 286,501,615.20 is: 429,752,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,501,615.20 : 429,752,422.80 = 286,501,615.20 : x
  2. Step 2: Convert to fraction form
    286,501,615.20/429,752,422.80 = 286,501,615.20/x
  3. Step 3: Cross multiply
    286,501,615.20x = 429,752,422.80 × 286,501,615.20
  4. Step 4: Simplify right side
    286,501,615.20x = 123,124,763,268,313,312
  5. Step 5: Solve for x
    x = 123,124,763,268,313,312/286,501,615.20
  6. Step 6: Final answer
    x = 429,752,422.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.