Home / 156,061,701.64-215,192,598.63-99,456,822.58

Finding the Fourth Proportional to 156,061,701.64, 215,192,598.63 and 99,456,822.58

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Solution

The fourth proportional to 156,061,701.64, 215,192,598.63 and 99,456,822.58 is: 137,140,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,061,701.64 : 215,192,598.63 = 99,456,822.58 : x
  2. Step 2: Convert to fraction form
    156,061,701.64/215,192,598.63 = 99,456,822.58/x
  3. Step 3: Cross multiply
    156,061,701.64x = 215,192,598.63 × 99,456,822.58
  4. Step 4: Simplify right side
    156,061,701.64x = 21,402,372,102,473,060
  5. Step 5: Solve for x
    x = 21,402,372,102,473,060/156,061,701.64
  6. Step 6: Final answer
    x = 137,140,450.72

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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.