Home / 142,639,600.40-213,959,400.60-40,402,307.60

Finding the Fourth Proportional to 142,639,600.40, 213,959,400.60 and 40,402,307.60

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Solution

The fourth proportional to 142,639,600.40, 213,959,400.60 and 40,402,307.60 is: 60,603,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,639,600.40 : 213,959,400.60 = 40,402,307.60 : x
  2. Step 2: Convert to fraction form
    142,639,600.40/213,959,400.60 = 40,402,307.60/x
  3. Step 3: Cross multiply
    142,639,600.40x = 213,959,400.60 × 40,402,307.60
  4. Step 4: Simplify right side
    142,639,600.40x = 8,644,453,516,952,825
  5. Step 5: Solve for x
    x = 8,644,453,516,952,825/142,639,600.40
  6. Step 6: Final answer
    x = 60,603,461.40

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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.