Home / 28,260,045.60-42,390,068.40-10,306,816.80

Finding the Fourth Proportional to 28,260,045.60, 42,390,068.40 and 10,306,816.80

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Solution

The fourth proportional to 28,260,045.60, 42,390,068.40 and 10,306,816.80 is: 15,460,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260,045.60 : 42,390,068.40 = 10,306,816.80 : x
  2. Step 2: Convert to fraction form
    28,260,045.60/42,390,068.40 = 10,306,816.80/x
  3. Step 3: Cross multiply
    28,260,045.60x = 42,390,068.40 × 10,306,816.80
  4. Step 4: Simplify right side
    28,260,045.60x = 436,906,669,138,269.12
  5. Step 5: Solve for x
    x = 436,906,669,138,269.12/28,260,045.60
  6. Step 6: Final answer
    x = 15,460,225.20

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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.