Home / 66,254,876.78-91,430,863.90-38,381,386.82

Finding the Fourth Proportional to 66,254,876.78, 91,430,863.90 and 38,381,386.82

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Solution

The fourth proportional to 66,254,876.78, 91,430,863.90 and 38,381,386.82 is: 52,965,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254,876.78 : 91,430,863.90 = 38,381,386.82 : x
  2. Step 2: Convert to fraction form
    66,254,876.78/91,430,863.90 = 38,381,386.82/x
  3. Step 3: Cross multiply
    66,254,876.78x = 91,430,863.90 × 38,381,386.82
  4. Step 4: Simplify right side
    66,254,876.78x = 3,509,243,354,079,565.50
  5. Step 5: Solve for x
    x = 3,509,243,354,079,565.50/66,254,876.78
  6. Step 6: Final answer
    x = 52,965,812.10

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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.