Home / 156,410,397.29-215,851,303.08-90,329,694.77

Finding the Fourth Proportional to 156,410,397.29, 215,851,303.08 and 90,329,694.77

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Solution

The fourth proportional to 156,410,397.29, 215,851,303.08 and 90,329,694.77 is: 124,657,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,410,397.29 : 215,851,303.08 = 90,329,694.77 : x
  2. Step 2: Convert to fraction form
    156,410,397.29/215,851,303.08 = 90,329,694.77/x
  3. Step 3: Cross multiply
    156,410,397.29x = 215,851,303.08 × 90,329,694.77
  4. Step 4: Simplify right side
    156,410,397.29x = 19,497,782,321,843,904
  5. Step 5: Solve for x
    x = 19,497,782,321,843,904/156,410,397.29
  6. Step 6: Final answer
    x = 124,657,840.27

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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.