Home / 671,529,355.16-926,714,186.24-389,439,047.76

Finding the Fourth Proportional to 671,529,355.16, 926,714,186.24 and 389,439,047.76

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Solution

The fourth proportional to 671,529,355.16, 926,714,186.24 and 389,439,047.76 is: 537,428,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,529,355.16 : 926,714,186.24 = 389,439,047.76 : x
  2. Step 2: Convert to fraction form
    671,529,355.16/926,714,186.24 = 389,439,047.76/x
  3. Step 3: Cross multiply
    671,529,355.16x = 926,714,186.24 × 389,439,047.76
  4. Step 4: Simplify right side
    671,529,355.16x = 360,898,690,234,988,864
  5. Step 5: Solve for x
    x = 360,898,690,234,988,864/671,529,355.16
  6. Step 6: Final answer
    x = 537,428,017.80

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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.