Home / 103,306,340.73-142,572,820.03-77,155,457.72

Finding the Fourth Proportional to 103,306,340.73, 142,572,820.03 and 77,155,457.72

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Solution

The fourth proportional to 103,306,340.73, 142,572,820.03 and 77,155,457.72 is: 106,482,052.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,306,340.73 : 142,572,820.03 = 77,155,457.72 : x
  2. Step 2: Convert to fraction form
    103,306,340.73/142,572,820.03 = 77,155,457.72/x
  3. Step 3: Cross multiply
    103,306,340.73x = 142,572,820.03 × 77,155,457.72
  4. Step 4: Simplify right side
    103,306,340.73x = 11,000,271,188,298,710
  5. Step 5: Solve for x
    x = 11,000,271,188,298,710/103,306,340.73
  6. Step 6: Final answer
    x = 106,482,052.41

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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.