Home / 115,880,333.80-173,820,500.70-72,779,812.60

Finding the Fourth Proportional to 115,880,333.80, 173,820,500.70 and 72,779,812.60

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Solution

The fourth proportional to 115,880,333.80, 173,820,500.70 and 72,779,812.60 is: 109,169,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,880,333.80 : 173,820,500.70 = 72,779,812.60 : x
  2. Step 2: Convert to fraction form
    115,880,333.80/173,820,500.70 = 72,779,812.60/x
  3. Step 3: Cross multiply
    115,880,333.80x = 173,820,500.70 × 72,779,812.60
  4. Step 4: Simplify right side
    115,880,333.80x = 12,650,623,466,984,166
  5. Step 5: Solve for x
    x = 12,650,623,466,984,166/115,880,333.80
  6. Step 6: Final answer
    x = 109,169,718.90

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1.5x scale

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.