Home / 853,459,636.72-1,177,963,770.54-518,861,061.28

Finding the Fourth Proportional to 853,459,636.72, 1,177,963,770.54 and 518,861,061.28

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Solution

The fourth proportional to 853,459,636.72, 1,177,963,770.54 and 518,861,061.28 is: 716,143,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,459,636.72 : 1,177,963,770.54 = 518,861,061.28 : x
  2. Step 2: Convert to fraction form
    853,459,636.72/1,177,963,770.54 = 518,861,061.28/x
  3. Step 3: Cross multiply
    853,459,636.72x = 1,177,963,770.54 × 518,861,061.28
  4. Step 4: Simplify right side
    853,459,636.72x = 611,199,532,131,774,720
  5. Step 5: Solve for x
    x = 611,199,532,131,774,720/853,459,636.72
  6. Step 6: Final answer
    x = 716,143,454.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.