Home / 429,174,164.16-643,767,156-122,466,186.72

Finding the Fourth Proportional to 429,174,164.16, 643,767,156 and 122,466,186.72

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Solution

The fourth proportional to 429,174,164.16, 643,767,156 and 122,466,186.72 is: 183,700,966.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,174,164.16 : 643,767,156 = 122,466,186.72 : x
  2. Step 2: Convert to fraction form
    429,174,164.16/643,767,156 = 122,466,186.72/x
  3. Step 3: Cross multiply
    429,174,164.16x = 643,767,156 × 122,466,186.72
  4. Step 4: Simplify right side
    429,174,164.16x = 78,839,708,730,899,360
  5. Step 5: Solve for x
    x = 78,839,708,730,899,360/429,174,164.16
  6. Step 6: Final answer
    x = 183,700,966.45

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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.