Home / 139,968,186.90-209,952,280.35-42,923,123.70

Finding the Fourth Proportional to 139,968,186.90, 209,952,280.35 and 42,923,123.70

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Solution

The fourth proportional to 139,968,186.90, 209,952,280.35 and 42,923,123.70 is: 64,384,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,186.90 : 209,952,280.35 = 42,923,123.70 : x
  2. Step 2: Convert to fraction form
    139,968,186.90/209,952,280.35 = 42,923,123.70/x
  3. Step 3: Cross multiply
    139,968,186.90x = 209,952,280.35 × 42,923,123.70
  4. Step 4: Simplify right side
    139,968,186.90x = 9,011,807,700,560,130
  5. Step 5: Solve for x
    x = 9,011,807,700,560,130/139,968,186.90
  6. Step 6: Final answer
    x = 64,384,685.55

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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.