Home / 154,365,809.40-231,548,714.10-77,838,305.40

Finding the Fourth Proportional to 154,365,809.40, 231,548,714.10 and 77,838,305.40

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Solution

The fourth proportional to 154,365,809.40, 231,548,714.10 and 77,838,305.40 is: 116,757,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,365,809.40 : 231,548,714.10 = 77,838,305.40 : x
  2. Step 2: Convert to fraction form
    154,365,809.40/231,548,714.10 = 77,838,305.40/x
  3. Step 3: Cross multiply
    154,365,809.40x = 231,548,714.10 × 77,838,305.40
  4. Step 4: Simplify right side
    154,365,809.40x = 18,023,359,523,093,088
  5. Step 5: Solve for x
    x = 18,023,359,523,093,088/154,365,809.40
  6. Step 6: Final answer
    x = 116,757,458.10

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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.