Home / 78,541,798.08-117,652,083.84-64,020,468

Finding the Fourth Proportional to 78,541,798.08, 117,652,083.84 and 64,020,468

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Solution

The fourth proportional to 78,541,798.08, 117,652,083.84 and 64,020,468 is: 95,899,783.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,541,798.08 : 117,652,083.84 = 64,020,468 : x
  2. Step 2: Convert to fraction form
    78,541,798.08/117,652,083.84 = 64,020,468/x
  3. Step 3: Cross multiply
    78,541,798.08x = 117,652,083.84 × 64,020,468
  4. Step 4: Simplify right side
    78,541,798.08x = 7,532,141,468,612,037
  5. Step 5: Solve for x
    x = 7,532,141,468,612,037/78,541,798.08
  6. Step 6: Final answer
    x = 95,899,783.97

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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.