Home / 429,027,681.29-643,547,500.85-122,319,794.17

Finding the Fourth Proportional to 429,027,681.29, 643,547,500.85 and 122,319,794.17

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Solution

The fourth proportional to 429,027,681.29, 643,547,500.85 and 122,319,794.17 is: 183,481,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,027,681.29 : 643,547,500.85 = 122,319,794.17 : x
  2. Step 2: Convert to fraction form
    429,027,681.29/643,547,500.85 = 122,319,794.17/x
  3. Step 3: Cross multiply
    429,027,681.29x = 643,547,500.85 × 122,319,794.17
  4. Step 4: Simplify right side
    429,027,681.29x = 78,718,597,839,740,896
  5. Step 5: Solve for x
    x = 78,718,597,839,740,896/429,027,681.29
  6. Step 6: Final answer
    x = 183,481,395.89

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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.