Home / 478,281,837.30-717,590,717.55-205,736,147.70

Finding the Fourth Proportional to 478,281,837.30, 717,590,717.55 and 205,736,147.70

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Solution

The fourth proportional to 478,281,837.30, 717,590,717.55 and 205,736,147.70 is: 308,676,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,281,837.30 : 717,590,717.55 = 205,736,147.70 : x
  2. Step 2: Convert to fraction form
    478,281,837.30/717,590,717.55 = 205,736,147.70/x
  3. Step 3: Cross multiply
    478,281,837.30x = 717,590,717.55 × 205,736,147.70
  4. Step 4: Simplify right side
    478,281,837.30x = 147,634,349,854,015,776
  5. Step 5: Solve for x
    x = 147,634,349,854,015,776/478,281,837.30
  6. Step 6: Final answer
    x = 308,676,471.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.