Home / 139,453,071.90-209,179,607.85-42,408,008.70

Finding the Fourth Proportional to 139,453,071.90, 209,179,607.85 and 42,408,008.70

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Solution

The fourth proportional to 139,453,071.90, 209,179,607.85 and 42,408,008.70 is: 63,612,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,453,071.90 : 209,179,607.85 = 42,408,008.70 : x
  2. Step 2: Convert to fraction form
    139,453,071.90/209,179,607.85 = 42,408,008.70/x
  3. Step 3: Cross multiply
    139,453,071.90x = 209,179,607.85 × 42,408,008.70
  4. Step 4: Simplify right side
    139,453,071.90x = 8,870,890,629,565,389
  5. Step 5: Solve for x
    x = 8,870,890,629,565,389/139,453,071.90
  6. Step 6: Final answer
    x = 63,612,013.05

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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.