Home / 86,287,875.90-128,959,009.70-62,993,672.93

Finding the Fourth Proportional to 86,287,875.90, 128,959,009.70 and 62,993,672.93

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Solution

The fourth proportional to 86,287,875.90, 128,959,009.70 and 62,993,672.93 is: 94,145,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,287,875.90 : 128,959,009.70 = 62,993,672.93 : x
  2. Step 2: Convert to fraction form
    86,287,875.90/128,959,009.70 = 62,993,672.93/x
  3. Step 3: Cross multiply
    86,287,875.90x = 128,959,009.70 × 62,993,672.93
  4. Step 4: Simplify right side
    86,287,875.90x = 8,123,601,678,418,498
  5. Step 5: Solve for x
    x = 8,123,601,678,418,498/86,287,875.90
  6. Step 6: Final answer
    x = 94,145,343.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.