Home / 391,157,024.80-586,735,537.20-118,492,362.40

Finding the Fourth Proportional to 391,157,024.80, 586,735,537.20 and 118,492,362.40

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Solution

The fourth proportional to 391,157,024.80, 586,735,537.20 and 118,492,362.40 is: 177,738,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,157,024.80 : 586,735,537.20 = 118,492,362.40 : x
  2. Step 2: Convert to fraction form
    391,157,024.80/586,735,537.20 = 118,492,362.40/x
  3. Step 3: Cross multiply
    391,157,024.80x = 586,735,537.20 × 118,492,362.40
  4. Step 4: Simplify right side
    391,157,024.80x = 69,523,679,906,861,088
  5. Step 5: Solve for x
    x = 69,523,679,906,861,088/391,157,024.80
  6. Step 6: Final answer
    x = 177,738,543.60

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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.