Home / 319,788,045.60-479,542,100.40-147,207,501.60

Finding the Fourth Proportional to 319,788,045.60, 479,542,100.40 and 147,207,501.60

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Solution

The fourth proportional to 319,788,045.60, 479,542,100.40 and 147,207,501.60 is: 220,746,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,788,045.60 : 479,542,100.40 = 147,207,501.60 : x
  2. Step 2: Convert to fraction form
    319,788,045.60/479,542,100.40 = 147,207,501.60/x
  3. Step 3: Cross multiply
    319,788,045.60x = 479,542,100.40 × 147,207,501.60
  4. Step 4: Simplify right side
    319,788,045.60x = 70,592,194,511,900,352
  5. Step 5: Solve for x
    x = 70,592,194,511,900,352/319,788,045.60
  6. Step 6: Final answer
    x = 220,746,821.16

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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.