Home / 77,436,113.90-116,154,170.85-54,257,413.10

Finding the Fourth Proportional to 77,436,113.90, 116,154,170.85 and 54,257,413.10

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Solution

The fourth proportional to 77,436,113.90, 116,154,170.85 and 54,257,413.10 is: 81,386,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,436,113.90 : 116,154,170.85 = 54,257,413.10 : x
  2. Step 2: Convert to fraction form
    77,436,113.90/116,154,170.85 = 54,257,413.10/x
  3. Step 3: Cross multiply
    77,436,113.90x = 116,154,170.85 × 54,257,413.10
  4. Step 4: Simplify right side
    77,436,113.90x = 6,302,224,831,096,428
  5. Step 5: Solve for x
    x = 6,302,224,831,096,428/77,436,113.90
  6. Step 6: Final answer
    x = 81,386,119.65

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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.