Home / 149,053,041.96-205,699,943.89-86,331,876.92

Finding the Fourth Proportional to 149,053,041.96, 205,699,943.89 and 86,331,876.92

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Solution

The fourth proportional to 149,053,041.96, 205,699,943.89 and 86,331,876.92 is: 119,141,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,053,041.96 : 205,699,943.89 = 86,331,876.92 : x
  2. Step 2: Convert to fraction form
    149,053,041.96/205,699,943.89 = 86,331,876.92/x
  3. Step 3: Cross multiply
    149,053,041.96x = 205,699,943.89 × 86,331,876.92
  4. Step 4: Simplify right side
    149,053,041.96x = 17,758,462,238,362,386
  5. Step 5: Solve for x
    x = 17,758,462,238,362,386/149,053,041.96
  6. Step 6: Final answer
    x = 119,141,897.44

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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.