Home / 83,109,091.60-124,663,637.40-68,953,315.60

Finding the Fourth Proportional to 83,109,091.60, 124,663,637.40 and 68,953,315.60

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Solution

The fourth proportional to 83,109,091.60, 124,663,637.40 and 68,953,315.60 is: 103,429,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,109,091.60 : 124,663,637.40 = 68,953,315.60 : x
  2. Step 2: Convert to fraction form
    83,109,091.60/124,663,637.40 = 68,953,315.60/x
  3. Step 3: Cross multiply
    83,109,091.60x = 124,663,637.40 × 68,953,315.60
  4. Step 4: Simplify right side
    83,109,091.60x = 8,595,971,133,486,163
  5. Step 5: Solve for x
    x = 8,595,971,133,486,163/83,109,091.60
  6. Step 6: Final answer
    x = 103,429,973.40

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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.