Home / 111,282,808.32-153,588,663.04-61,739,143.70

Finding the Fourth Proportional to 111,282,808.32, 153,588,663.04 and 61,739,143.70

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Solution

The fourth proportional to 111,282,808.32, 153,588,663.04 and 61,739,143.70 is: 85,210,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,282,808.32 : 153,588,663.04 = 61,739,143.70 : x
  2. Step 2: Convert to fraction form
    111,282,808.32/153,588,663.04 = 61,739,143.70/x
  3. Step 3: Cross multiply
    111,282,808.32x = 153,588,663.04 × 61,739,143.70
  4. Step 4: Simplify right side
    111,282,808.32x = 9,482,432,538,117,438
  5. Step 5: Solve for x
    x = 9,482,432,538,117,438/111,282,808.32
  6. Step 6: Final answer
    x = 85,210,219.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.