Home / 90,537,677.28-124,942,008.96-49,284,878.40

Finding the Fourth Proportional to 90,537,677.28, 124,942,008.96 and 49,284,878.40

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Solution

The fourth proportional to 90,537,677.28, 124,942,008.96 and 49,284,878.40 is: 68,013,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,537,677.28 : 124,942,008.96 = 49,284,878.40 : x
  2. Step 2: Convert to fraction form
    90,537,677.28/124,942,008.96 = 49,284,878.40/x
  3. Step 3: Cross multiply
    90,537,677.28x = 124,942,008.96 × 49,284,878.40
  4. Step 4: Simplify right side
    90,537,677.28x = 6,157,751,718,645,310
  5. Step 5: Solve for x
    x = 6,157,751,718,645,310/90,537,677.28
  6. Step 6: Final answer
    x = 68,013,139.98

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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.