Home / 132,862,509.60-199,293,764.40-78,219,002.40

Finding the Fourth Proportional to 132,862,509.60, 199,293,764.40 and 78,219,002.40

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Solution

The fourth proportional to 132,862,509.60, 199,293,764.40 and 78,219,002.40 is: 117,328,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,862,509.60 : 199,293,764.40 = 78,219,002.40 : x
  2. Step 2: Convert to fraction form
    132,862,509.60/199,293,764.40 = 78,219,002.40/x
  3. Step 3: Cross multiply
    132,862,509.60x = 199,293,764.40 × 78,219,002.40
  4. Step 4: Simplify right side
    132,862,509.60x = 15,588,559,435,908,636
  5. Step 5: Solve for x
    x = 15,588,559,435,908,636/132,862,509.60
  6. Step 6: Final answer
    x = 117,328,503.60

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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.