Home / 156,128,657.04-215,457,548.15-86,514,037.90

Finding the Fourth Proportional to 156,128,657.04, 215,457,548.15 and 86,514,037.90

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Solution

The fourth proportional to 156,128,657.04, 215,457,548.15 and 86,514,037.90 is: 119,389,373.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,128,657.04 : 215,457,548.15 = 86,514,037.90 : x
  2. Step 2: Convert to fraction form
    156,128,657.04/215,457,548.15 = 86,514,037.90/x
  3. Step 3: Cross multiply
    156,128,657.04x = 215,457,548.15 × 86,514,037.90
  4. Step 4: Simplify right side
    156,128,657.04x = 18,640,102,485,681,604
  5. Step 5: Solve for x
    x = 18,640,102,485,681,604/156,128,657.04
  6. Step 6: Final answer
    x = 119,389,373.09

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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.