Home / 91,864,259.80-137,796,389.70-86,195,555.80

Finding the Fourth Proportional to 91,864,259.80, 137,796,389.70 and 86,195,555.80

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Solution

The fourth proportional to 91,864,259.80, 137,796,389.70 and 86,195,555.80 is: 129,293,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864,259.80 : 137,796,389.70 = 86,195,555.80 : x
  2. Step 2: Convert to fraction form
    91,864,259.80/137,796,389.70 = 86,195,555.80/x
  3. Step 3: Cross multiply
    91,864,259.80x = 137,796,389.70 × 86,195,555.80
  4. Step 4: Simplify right side
    91,864,259.80x = 11,877,436,397,424,894
  5. Step 5: Solve for x
    x = 11,877,436,397,424,894/91,864,259.80
  6. Step 6: Final answer
    x = 129,293,333.70

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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.