Home / 155,822,480.56-215,033,428.81-86,208,359.66

Finding the Fourth Proportional to 155,822,480.56, 215,033,428.81 and 86,208,359.66

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Solution

The fourth proportional to 155,822,480.56, 215,033,428.81 and 86,208,359.66 is: 118,966,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,822,480.56 : 215,033,428.81 = 86,208,359.66 : x
  2. Step 2: Convert to fraction form
    155,822,480.56/215,033,428.81 = 86,208,359.66/x
  3. Step 3: Cross multiply
    155,822,480.56x = 215,033,428.81 × 86,208,359.66
  4. Step 4: Simplify right side
    155,822,480.56x = 18,537,679,169,775,484
  5. Step 5: Solve for x
    x = 18,537,679,169,775,484/155,822,480.56
  6. Step 6: Final answer
    x = 118,966,654.25

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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.