Home / 520,243,015,657.60-717,877,134,785.64-288,766,291,226.20

Finding the Fourth Proportional to 520,243,015,657.60, 717,877,134,785.64 and 288,766,291,226.20

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Solution

The fourth proportional to 520,243,015,657.60, 717,877,134,785.64 and 288,766,291,226.20 is: 398,465,162,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,243,015,657.60 : 717,877,134,785.64 = 288,766,291,226.20 : x
  2. Step 2: Convert to fraction form
    520,243,015,657.60/717,877,134,785.64 = 288,766,291,226.20/x
  3. Step 3: Cross multiply
    520,243,015,657.60x = 717,877,134,785.64 × 288,766,291,226.20
  4. Step 4: Simplify right side
    520,243,015,657.60x = 207,298,717,768,140,174,917,632
  5. Step 5: Solve for x
    x = 207,298,717,768,140,174,917,632/520,243,015,657.60
  6. Step 6: Final answer
    x = 398,465,162,489.71

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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.