Home / 156,061,699.64-215,192,595.87-99,456,820.58

Finding the Fourth Proportional to 156,061,699.64, 215,192,595.87 and 99,456,820.58

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Solution

The fourth proportional to 156,061,699.64, 215,192,595.87 and 99,456,820.58 is: 137,140,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,061,699.64 : 215,192,595.87 = 99,456,820.58 : x
  2. Step 2: Convert to fraction form
    156,061,699.64/215,192,595.87 = 99,456,820.58/x
  3. Step 3: Cross multiply
    156,061,699.64x = 215,192,595.87 × 99,456,820.58
  4. Step 4: Simplify right side
    156,061,699.64x = 21,402,371,398,528,504
  5. Step 5: Solve for x
    x = 21,402,371,398,528,504/156,061,699.64
  6. Step 6: Final answer
    x = 137,140,447.97

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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.