Home / 510,011,425.65-703,761,500.88-286,989,220.80

Finding the Fourth Proportional to 510,011,425.65, 703,761,500.88 and 286,989,220.80

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Solution

The fourth proportional to 510,011,425.65, 703,761,500.88 and 286,989,220.80 is: 396,014,588.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,011,425.65 : 703,761,500.88 = 286,989,220.80 : x
  2. Step 2: Convert to fraction form
    510,011,425.65/703,761,500.88 = 286,989,220.80/x
  3. Step 3: Cross multiply
    510,011,425.65x = 703,761,500.88 × 286,989,220.80
  4. Step 4: Simplify right side
    510,011,425.65x = 201,971,964,766,589,728
  5. Step 5: Solve for x
    x = 201,971,964,766,589,728/510,011,425.65
  6. Step 6: Final answer
    x = 396,014,588.32

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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.