Home / 558,678,420.20-838,017,630.30-316,813,716.20

Finding the Fourth Proportional to 558,678,420.20, 838,017,630.30 and 316,813,716.20

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Solution

The fourth proportional to 558,678,420.20, 838,017,630.30 and 316,813,716.20 is: 475,220,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,678,420.20 : 838,017,630.30 = 316,813,716.20 : x
  2. Step 2: Convert to fraction form
    558,678,420.20/838,017,630.30 = 316,813,716.20/x
  3. Step 3: Cross multiply
    558,678,420.20x = 838,017,630.30 × 316,813,716.20
  4. Step 4: Simplify right side
    558,678,420.20x = 265,495,479,696,460,704
  5. Step 5: Solve for x
    x = 265,495,479,696,460,704/558,678,420.20
  6. Step 6: Final answer
    x = 475,220,574.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.