Home / 478,284,330.20-717,426,495.30-260,039,226.20

Finding the Fourth Proportional to 478,284,330.20, 717,426,495.30 and 260,039,226.20

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Solution

The fourth proportional to 478,284,330.20, 717,426,495.30 and 260,039,226.20 is: 390,058,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,284,330.20 : 717,426,495.30 = 260,039,226.20 : x
  2. Step 2: Convert to fraction form
    478,284,330.20/717,426,495.30 = 260,039,226.20/x
  3. Step 3: Cross multiply
    478,284,330.20x = 717,426,495.30 × 260,039,226.20
  4. Step 4: Simplify right side
    478,284,330.20x = 186,559,030,693,189,920
  5. Step 5: Solve for x
    x = 186,559,030,693,189,920/478,284,330.20
  6. Step 6: Final answer
    x = 390,058,839.30

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Double scale
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Similar ratio
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1.5x scale

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.