Home / 520,243,015,655.65-717,877,134,782.95-288,766,291,224.20

Finding the Fourth Proportional to 520,243,015,655.65, 717,877,134,782.95 and 288,766,291,224.20

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Solution

The fourth proportional to 520,243,015,655.65, 717,877,134,782.95 and 288,766,291,224.20 is: 398,465,162,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,243,015,655.65 : 717,877,134,782.95 = 288,766,291,224.20 : x
  2. Step 2: Convert to fraction form
    520,243,015,655.65/717,877,134,782.95 = 288,766,291,224.20/x
  3. Step 3: Cross multiply
    520,243,015,655.65x = 717,877,134,782.95 × 288,766,291,224.20
  4. Step 4: Simplify right side
    520,243,015,655.65x = 207,298,717,765,927,595,671,552
  5. Step 5: Solve for x
    x = 207,298,717,765,927,595,671,552/520,243,015,655.65
  6. Step 6: Final answer
    x = 398,465,162,486.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.