Home / 89,865,200.40-134,797,800.60-86,338,006.80

Finding the Fourth Proportional to 89,865,200.40, 134,797,800.60 and 86,338,006.80

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Solution

The fourth proportional to 89,865,200.40, 134,797,800.60 and 86,338,006.80 is: 129,507,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,865,200.40 : 134,797,800.60 = 86,338,006.80 : x
  2. Step 2: Convert to fraction form
    89,865,200.40/134,797,800.60 = 86,338,006.80/x
  3. Step 3: Cross multiply
    89,865,200.40x = 134,797,800.60 × 86,338,006.80
  4. Step 4: Simplify right side
    89,865,200.40x = 11,638,173,424,827,844
  5. Step 5: Solve for x
    x = 11,638,173,424,827,844/89,865,200.40
  6. Step 6: Final answer
    x = 129,507,010.20

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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.