Home / 139,882,739.34-193,038,366.24-77,157,430.62

Finding the Fourth Proportional to 139,882,739.34, 193,038,366.24 and 77,157,430.62

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Solution

The fourth proportional to 139,882,739.34, 193,038,366.24 and 77,157,430.62 is: 106,477,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,882,739.34 : 193,038,366.24 = 77,157,430.62 : x
  2. Step 2: Convert to fraction form
    139,882,739.34/193,038,366.24 = 77,157,430.62/x
  3. Step 3: Cross multiply
    139,882,739.34x = 193,038,366.24 × 77,157,430.62
  4. Step 4: Simplify right side
    139,882,739.34x = 14,894,344,350,160,952
  5. Step 5: Solve for x
    x = 14,894,344,350,160,952/139,882,739.34
  6. Step 6: Final answer
    x = 106,477,356.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.