Home / 139,968,180.10-209,952,270.15-78,746,176.90

Finding the Fourth Proportional to 139,968,180.10, 209,952,270.15 and 78,746,176.90

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Solution

The fourth proportional to 139,968,180.10, 209,952,270.15 and 78,746,176.90 is: 118,119,265.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,180.10 : 209,952,270.15 = 78,746,176.90 : x
  2. Step 2: Convert to fraction form
    139,968,180.10/209,952,270.15 = 78,746,176.90/x
  3. Step 3: Cross multiply
    139,968,180.10x = 209,952,270.15 × 78,746,176.90
  4. Step 4: Simplify right side
    139,968,180.10x = 16,532,938,605,788,492
  5. Step 5: Solve for x
    x = 16,532,938,605,788,492/139,968,180.10
  6. Step 6: Final answer
    x = 118,119,265.35

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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.