Home / 876,656,231.89-1,209,905,959.29-537,504,712.52

Finding the Fourth Proportional to 876,656,231.89, 1,209,905,959.29 and 537,504,712.52

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Solution

The fourth proportional to 876,656,231.89, 1,209,905,959.29 and 537,504,712.52 is: 741,830,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,656,231.89 : 1,209,905,959.29 = 537,504,712.52 : x
  2. Step 2: Convert to fraction form
    876,656,231.89/1,209,905,959.29 = 537,504,712.52/x
  3. Step 3: Cross multiply
    876,656,231.89x = 1,209,905,959.29 × 537,504,712.52
  4. Step 4: Simplify right side
    876,656,231.89x = 650,330,154,820,851,328
  5. Step 5: Solve for x
    x = 650,330,154,820,851,328/876,656,231.89
  6. Step 6: Final answer
    x = 741,830,299.23

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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.