Home / 153,792,014.10-230,688,021.15-80,909,121.30

Finding the Fourth Proportional to 153,792,014.10, 230,688,021.15 and 80,909,121.30

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Solution

The fourth proportional to 153,792,014.10, 230,688,021.15 and 80,909,121.30 is: 121,363,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,792,014.10 : 230,688,021.15 = 80,909,121.30 : x
  2. Step 2: Convert to fraction form
    153,792,014.10/230,688,021.15 = 80,909,121.30/x
  3. Step 3: Cross multiply
    153,792,014.10x = 230,688,021.15 × 80,909,121.30
  4. Step 4: Simplify right side
    153,792,014.10x = 18,664,765,085,682,316
  5. Step 5: Solve for x
    x = 18,664,765,085,682,316/153,792,014.10
  6. Step 6: Final answer
    x = 121,363,681.95

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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.