Home / 139,420,671.93-208,939,686.98-88,211,017.53

Finding the Fourth Proportional to 139,420,671.93, 208,939,686.98 and 88,211,017.53

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Solution

The fourth proportional to 139,420,671.93, 208,939,686.98 and 88,211,017.53 is: 132,195,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,420,671.93 : 208,939,686.98 = 88,211,017.53 : x
  2. Step 2: Convert to fraction form
    139,420,671.93/208,939,686.98 = 88,211,017.53/x
  3. Step 3: Cross multiply
    139,420,671.93x = 208,939,686.98 × 88,211,017.53
  4. Step 4: Simplify right side
    139,420,671.93x = 18,430,782,390,464,436
  5. Step 5: Solve for x
    x = 18,430,782,390,464,436/139,420,671.93
  6. Step 6: Final answer
    x = 132,195,478.15

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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.