Home / 142,170,958.68-213,232,052.16-45,105,030.96

Finding the Fourth Proportional to 142,170,958.68, 213,232,052.16 and 45,105,030.96

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Solution

The fourth proportional to 142,170,958.68, 213,232,052.16 and 45,105,030.96 is: 67,649,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,170,958.68 : 213,232,052.16 = 45,105,030.96 : x
  2. Step 2: Convert to fraction form
    142,170,958.68/213,232,052.16 = 45,105,030.96/x
  3. Step 3: Cross multiply
    142,170,958.68x = 213,232,052.16 × 45,105,030.96
  4. Step 4: Simplify right side
    142,170,958.68x = 9,617,838,314,341,134
  5. Step 5: Solve for x
    x = 9,617,838,314,341,134/142,170,958.68
  6. Step 6: Final answer
    x = 67,649,809.80

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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.