Home / 154,365,811.40-231,548,717.10-77,838,307.40

Finding the Fourth Proportional to 154,365,811.40, 231,548,717.10 and 77,838,307.40

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Solution

The fourth proportional to 154,365,811.40, 231,548,717.10 and 77,838,307.40 is: 116,757,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,365,811.40 : 231,548,717.10 = 77,838,307.40 : x
  2. Step 2: Convert to fraction form
    154,365,811.40/231,548,717.10 = 77,838,307.40/x
  3. Step 3: Cross multiply
    154,365,811.40x = 231,548,717.10 × 77,838,307.40
  4. Step 4: Simplify right side
    154,365,811.40x = 18,023,360,219,705,436
  5. Step 5: Solve for x
    x = 18,023,360,219,705,436/154,365,811.40
  6. Step 6: Final answer
    x = 116,757,461.10

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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.