Home / 688,305,122.66-949,849,109.88-375,041,910.80

Finding the Fourth Proportional to 688,305,122.66, 949,849,109.88 and 375,041,910.80

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Solution

The fourth proportional to 688,305,122.66, 949,849,109.88 and 375,041,910.80 is: 517,551,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,305,122.66 : 949,849,109.88 = 375,041,910.80 : x
  2. Step 2: Convert to fraction form
    688,305,122.66/949,849,109.88 = 375,041,910.80/x
  3. Step 3: Cross multiply
    688,305,122.66x = 949,849,109.88 × 375,041,910.80
  4. Step 4: Simplify right side
    688,305,122.66x = 356,233,225,141,074,368
  5. Step 5: Solve for x
    x = 356,233,225,141,074,368/688,305,122.66
  6. Step 6: Final answer
    x = 517,551,320.50

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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.