Home / 126,372,923.20-189,559,384.80-83,290,772.80

Finding the Fourth Proportional to 126,372,923.20, 189,559,384.80 and 83,290,772.80

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Solution

The fourth proportional to 126,372,923.20, 189,559,384.80 and 83,290,772.80 is: 124,936,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,923.20 : 189,559,384.80 = 83,290,772.80 : x
  2. Step 2: Convert to fraction form
    126,372,923.20/189,559,384.80 = 83,290,772.80/x
  3. Step 3: Cross multiply
    126,372,923.20x = 189,559,384.80 × 83,290,772.80
  4. Step 4: Simplify right side
    126,372,923.20x = 15,788,547,651,484,574
  5. Step 5: Solve for x
    x = 15,788,547,651,484,574/126,372,923.20
  6. Step 6: Final answer
    x = 124,936,159.20

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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.