Home / 520,243,015,657.15-717,877,134,785.03-288,766,291,225.70

Finding the Fourth Proportional to 520,243,015,657.15, 717,877,134,785.03 and 288,766,291,225.70

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Solution

The fourth proportional to 520,243,015,657.15, 717,877,134,785.03 and 288,766,291,225.70 is: 398,465,162,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,243,015,657.15 : 717,877,134,785.03 = 288,766,291,225.70 : x
  2. Step 2: Convert to fraction form
    520,243,015,657.15/717,877,134,785.03 = 288,766,291,225.70/x
  3. Step 3: Cross multiply
    520,243,015,657.15x = 717,877,134,785.03 × 288,766,291,225.70
  4. Step 4: Simplify right side
    520,243,015,657.15x = 207,298,717,767,605,082,390,528
  5. Step 5: Solve for x
    x = 207,298,717,767,605,082,390,528/520,243,015,657.15
  6. Step 6: Final answer
    x = 398,465,162,489.02

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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.