Home / 478,284,325.20-717,426,487.80-260,039,221.20

Finding the Fourth Proportional to 478,284,325.20, 717,426,487.80 and 260,039,221.20

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Solution

The fourth proportional to 478,284,325.20, 717,426,487.80 and 260,039,221.20 is: 390,058,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,284,325.20 : 717,426,487.80 = 260,039,221.20 : x
  2. Step 2: Convert to fraction form
    478,284,325.20/717,426,487.80 = 260,039,221.20/x
  3. Step 3: Cross multiply
    478,284,325.20x = 717,426,487.80 × 260,039,221.20
  4. Step 4: Simplify right side
    478,284,325.20x = 186,559,025,155,763,296
  5. Step 5: Solve for x
    x = 186,559,025,155,763,296/478,284,325.20
  6. Step 6: Final answer
    x = 390,058,831.80

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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.