Home / 72,688,207,632.30-109,032,311,448.45-68,280,223,401.90

Finding the Fourth Proportional to 72,688,207,632.30, 109,032,311,448.45 and 68,280,223,401.90

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Solution

The fourth proportional to 72,688,207,632.30, 109,032,311,448.45 and 68,280,223,401.90 is: 102,420,335,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,688,207,632.30 : 109,032,311,448.45 = 68,280,223,401.90 : x
  2. Step 2: Convert to fraction form
    72,688,207,632.30/109,032,311,448.45 = 68,280,223,401.90/x
  3. Step 3: Cross multiply
    72,688,207,632.30x = 109,032,311,448.45 × 68,280,223,401.90
  4. Step 4: Simplify right side
    72,688,207,632.30x = 7,444,750,583,725,704,609,792
  5. Step 5: Solve for x
    x = 7,444,750,583,725,704,609,792/72,688,207,632.30
  6. Step 6: Final answer
    x = 102,420,335,102.85

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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.