Home / 478,802,586.74-718,234,222.35-202,402,287.86

Finding the Fourth Proportional to 478,802,586.74, 718,234,222.35 and 202,402,287.86

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Solution

The fourth proportional to 478,802,586.74, 718,234,222.35 and 202,402,287.86 is: 303,616,258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,802,586.74 : 718,234,222.35 = 202,402,287.86 : x
  2. Step 2: Convert to fraction form
    478,802,586.74/718,234,222.35 = 202,402,287.86/x
  3. Step 3: Cross multiply
    478,802,586.74x = 718,234,222.35 × 202,402,287.86
  4. Step 4: Simplify right side
    478,802,586.74x = 145,372,249,822,987,968
  5. Step 5: Solve for x
    x = 145,372,249,822,987,968/478,802,586.74
  6. Step 6: Final answer
    x = 303,616,258.24

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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.