Home / 157,005,240.89-216,667,242.83-87,389,127.77

Finding the Fourth Proportional to 157,005,240.89, 216,667,242.83 and 87,389,127.77

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Solution

The fourth proportional to 157,005,240.89, 216,667,242.83 and 87,389,127.77 is: 120,597,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,005,240.89 : 216,667,242.83 = 87,389,127.77 : x
  2. Step 2: Convert to fraction form
    157,005,240.89/216,667,242.83 = 87,389,127.77/x
  3. Step 3: Cross multiply
    157,005,240.89x = 216,667,242.83 × 87,389,127.77
  4. Step 4: Simplify right side
    157,005,240.89x = 18,934,361,366,379,624
  5. Step 5: Solve for x
    x = 18,934,361,366,379,624/157,005,240.89
  6. Step 6: Final answer
    x = 120,597,002.11

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1.5x scale

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.