Home / 186,788,428.20-257,791,807.98-108,456,386.76

Finding the Fourth Proportional to 186,788,428.20, 257,791,807.98 and 108,456,386.76

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Solution

The fourth proportional to 186,788,428.20, 257,791,807.98 and 108,456,386.76 is: 149,683,619.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,788,428.20 : 257,791,807.98 = 108,456,386.76 : x
  2. Step 2: Convert to fraction form
    186,788,428.20/257,791,807.98 = 108,456,386.76/x
  3. Step 3: Cross multiply
    186,788,428.20x = 257,791,807.98 × 108,456,386.76
  4. Step 4: Simplify right side
    186,788,428.20x = 27,959,168,029,838,536
  5. Step 5: Solve for x
    x = 27,959,168,029,838,536/186,788,428.20
  6. Step 6: Final answer
    x = 149,683,619.59

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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.