Home / 156,104,395.45-215,423,897.43-85,541,726.23

Finding the Fourth Proportional to 156,104,395.45, 215,423,897.43 and 85,541,726.23

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Solution

The fourth proportional to 156,104,395.45, 215,423,897.43 and 85,541,726.23 is: 118,047,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,104,395.45 : 215,423,897.43 = 85,541,726.23 : x
  2. Step 2: Convert to fraction form
    156,104,395.45/215,423,897.43 = 85,541,726.23/x
  3. Step 3: Cross multiply
    156,104,395.45x = 215,423,897.43 × 85,541,726.23
  4. Step 4: Simplify right side
    156,104,395.45x = 18,427,732,057,356,664
  5. Step 5: Solve for x
    x = 18,427,732,057,356,664/156,104,395.45
  6. Step 6: Final answer
    x = 118,047,489.98

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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.