Home / 42,765,687-64,154,934-15,478,364.25

Finding the Fourth Proportional to 42,765,687, 64,154,934 and 15,478,364.25

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Solution

The fourth proportional to 42,765,687, 64,154,934 and 15,478,364.25 is: 23,219,864.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,765,687 : 64,154,934 = 15,478,364.25 : x
  2. Step 2: Convert to fraction form
    42,765,687/64,154,934 = 15,478,364.25/x
  3. Step 3: Cross multiply
    42,765,687x = 64,154,934 × 15,478,364.25
  4. Step 4: Simplify right side
    42,765,687x = 993,013,436,886,709.50
  5. Step 5: Solve for x
    x = 993,013,436,886,709.50/42,765,687
  6. Step 6: Final answer
    x = 23,219,864.02

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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.