Home / 319,211,036.10-478,428,360.66-225,864,901.80

Finding the Fourth Proportional to 319,211,036.10, 478,428,360.66 and 225,864,901.80

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Solution

The fourth proportional to 319,211,036.10, 478,428,360.66 and 225,864,901.80 is: 338,522,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,211,036.10 : 478,428,360.66 = 225,864,901.80 : x
  2. Step 2: Convert to fraction form
    319,211,036.10/478,428,360.66 = 225,864,901.80/x
  3. Step 3: Cross multiply
    319,211,036.10x = 478,428,360.66 × 225,864,901.80
  4. Step 4: Simplify right side
    319,211,036.10x = 108,060,174,698,805,888
  5. Step 5: Solve for x
    x = 108,060,174,698,805,888/319,211,036.10
  6. Step 6: Final answer
    x = 338,522,677.72

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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.