Home / 86,918,605.80-130,377,908.70-77,092,852.20

Finding the Fourth Proportional to 86,918,605.80, 130,377,908.70 and 77,092,852.20

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Solution

The fourth proportional to 86,918,605.80, 130,377,908.70 and 77,092,852.20 is: 115,639,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,918,605.80 : 130,377,908.70 = 77,092,852.20 : x
  2. Step 2: Convert to fraction form
    86,918,605.80/130,377,908.70 = 77,092,852.20/x
  3. Step 3: Cross multiply
    86,918,605.80x = 130,377,908.70 × 77,092,852.20
  4. Step 4: Simplify right side
    86,918,605.80x = 10,051,204,845,554,194
  5. Step 5: Solve for x
    x = 10,051,204,845,554,194/86,918,605.80
  6. Step 6: Final answer
    x = 115,639,278.30

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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.