Home / 145,655,121.70-218,482,682.55-77,630,673.70

Finding the Fourth Proportional to 145,655,121.70, 218,482,682.55 and 77,630,673.70

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Solution

The fourth proportional to 145,655,121.70, 218,482,682.55 and 77,630,673.70 is: 116,446,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,121.70 : 218,482,682.55 = 77,630,673.70 : x
  2. Step 2: Convert to fraction form
    145,655,121.70/218,482,682.55 = 77,630,673.70/x
  3. Step 3: Cross multiply
    145,655,121.70x = 218,482,682.55 × 77,630,673.70
  4. Step 4: Simplify right side
    145,655,121.70x = 16,960,957,838,139,736
  5. Step 5: Solve for x
    x = 16,960,957,838,139,736/145,655,121.70
  6. Step 6: Final answer
    x = 116,446,010.55

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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.