Home / 42,765,685.50-64,154,931.75-15,478,362.75

Finding the Fourth Proportional to 42,765,685.50, 64,154,931.75 and 15,478,362.75

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Solution

The fourth proportional to 42,765,685.50, 64,154,931.75 and 15,478,362.75 is: 23,219,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,765,685.50 : 64,154,931.75 = 15,478,362.75 : x
  2. Step 2: Convert to fraction form
    42,765,685.50/64,154,931.75 = 15,478,362.75/x
  3. Step 3: Cross multiply
    42,765,685.50x = 64,154,931.75 × 15,478,362.75
  4. Step 4: Simplify right side
    42,765,685.50x = 993,013,305,827,992.25
  5. Step 5: Solve for x
    x = 993,013,305,827,992.25/42,765,685.50
  6. Step 6: Final answer
    x = 23,219,861.77

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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.