Home / 66,430,256.80-99,645,385.20-39,108,503.20

Finding the Fourth Proportional to 66,430,256.80, 99,645,385.20 and 39,108,503.20

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Solution

The fourth proportional to 66,430,256.80, 99,645,385.20 and 39,108,503.20 is: 58,662,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,256.80 : 99,645,385.20 = 39,108,503.20 : x
  2. Step 2: Convert to fraction form
    66,430,256.80/99,645,385.20 = 39,108,503.20/x
  3. Step 3: Cross multiply
    66,430,256.80x = 99,645,385.20 × 39,108,503.20
  4. Step 4: Simplify right side
    66,430,256.80x = 3,896,981,865,959,433
  5. Step 5: Solve for x
    x = 3,896,981,865,959,433/66,430,256.80
  6. Step 6: Final answer
    x = 58,662,754.80

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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.