Home / 785,679,957.06-1,084,264,515.45-428,467,223.76

Finding the Fourth Proportional to 785,679,957.06, 1,084,264,515.45 and 428,467,223.76

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Solution

The fourth proportional to 785,679,957.06, 1,084,264,515.45 and 428,467,223.76 is: 591,299,043.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,679,957.06 : 1,084,264,515.45 = 428,467,223.76 : x
  2. Step 2: Convert to fraction form
    785,679,957.06/1,084,264,515.45 = 428,467,223.76/x
  3. Step 3: Cross multiply
    785,679,957.06x = 1,084,264,515.45 × 428,467,223.76
  4. Step 4: Simplify right side
    785,679,957.06x = 464,571,806,750,921,792
  5. Step 5: Solve for x
    x = 464,571,806,750,921,792/785,679,957.06
  6. Step 6: Final answer
    x = 591,299,043.05

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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.