Home / 154,602,417.80-231,931,620.30-77,731,992.20

Finding the Fourth Proportional to 154,602,417.80, 231,931,620.30 and 77,731,992.20

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Solution

The fourth proportional to 154,602,417.80, 231,931,620.30 and 77,731,992.20 is: 116,612,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,602,417.80 : 231,931,620.30 = 77,731,992.20 : x
  2. Step 2: Convert to fraction form
    154,602,417.80/231,931,620.30 = 77,731,992.20/x
  3. Step 3: Cross multiply
    154,602,417.80x = 231,931,620.30 × 77,731,992.20
  4. Step 4: Simplify right side
    154,602,417.80x = 18,028,506,900,092,964
  5. Step 5: Solve for x
    x = 18,028,506,900,092,964/154,602,417.80
  6. Step 6: Final answer
    x = 116,612,063.10

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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.