Home / 103,120,459.40-142,303,391.70-56,710,708.04

Finding the Fourth Proportional to 103,120,459.40, 142,303,391.70 and 56,710,708.04

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Solution

The fourth proportional to 103,120,459.40, 142,303,391.70 and 56,710,708.04 is: 78,259,214.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,120,459.40 : 142,303,391.70 = 56,710,708.04 : x
  2. Step 2: Convert to fraction form
    103,120,459.40/142,303,391.70 = 56,710,708.04/x
  3. Step 3: Cross multiply
    103,120,459.40x = 142,303,391.70 × 56,710,708.04
  4. Step 4: Simplify right side
    103,120,459.40x = 8,070,126,099,800,458
  5. Step 5: Solve for x
    x = 8,070,126,099,800,458/103,120,459.40
  6. Step 6: Final answer
    x = 78,259,214.00

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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.