Home / 86,630,277.38-129,944,191.59-21,051,897.17

Finding the Fourth Proportional to 86,630,277.38, 129,944,191.59 and 21,051,897.17

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Solution

The fourth proportional to 86,630,277.38, 129,944,191.59 and 21,051,897.17 is: 31,577,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,630,277.38 : 129,944,191.59 = 21,051,897.17 : x
  2. Step 2: Convert to fraction form
    86,630,277.38/129,944,191.59 = 21,051,897.17/x
  3. Step 3: Cross multiply
    86,630,277.38x = 129,944,191.59 × 21,051,897.17
  4. Step 4: Simplify right side
    86,630,277.38x = 2,735,571,758,541,738
  5. Step 5: Solve for x
    x = 2,735,571,758,541,738/86,630,277.38
  6. Step 6: Final answer
    x = 31,577,548.19

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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.