Home / 86,208,005.40-129,312,008.10-83,184,696.60

Finding the Fourth Proportional to 86,208,005.40, 129,312,008.10 and 83,184,696.60

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Solution

The fourth proportional to 86,208,005.40, 129,312,008.10 and 83,184,696.60 is: 124,777,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208,005.40 : 129,312,008.10 = 83,184,696.60 : x
  2. Step 2: Convert to fraction form
    86,208,005.40/129,312,008.10 = 83,184,696.60/x
  3. Step 3: Cross multiply
    86,208,005.40x = 129,312,008.10 × 83,184,696.60
  4. Step 4: Simplify right side
    86,208,005.40x = 10,756,780,160,535,242
  5. Step 5: Solve for x
    x = 10,756,780,160,535,242/86,208,005.40
  6. Step 6: Final answer
    x = 124,777,044.90

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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.