Home / 86,938,479.86-119,977,979.45-47,781,644.54

Finding the Fourth Proportional to 86,938,479.86, 119,977,979.45 and 47,781,644.54

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Solution

The fourth proportional to 86,938,479.86, 119,977,979.45 and 47,781,644.54 is: 65,940,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,479.86 : 119,977,979.45 = 47,781,644.54 : x
  2. Step 2: Convert to fraction form
    86,938,479.86/119,977,979.45 = 47,781,644.54/x
  3. Step 3: Cross multiply
    86,938,479.86x = 119,977,979.45 × 47,781,644.54
  4. Step 4: Simplify right side
    86,938,479.86x = 5,732,745,165,868,526
  5. Step 5: Solve for x
    x = 5,732,745,165,868,526/86,938,479.86
  6. Step 6: Final answer
    x = 65,940,250.80

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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.