Home / 381,688,672.60-572,533,008.90-353,628,587.80

Finding the Fourth Proportional to 381,688,672.60, 572,533,008.90 and 353,628,587.80

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Solution

The fourth proportional to 381,688,672.60, 572,533,008.90 and 353,628,587.80 is: 530,442,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,688,672.60 : 572,533,008.90 = 353,628,587.80 : x
  2. Step 2: Convert to fraction form
    381,688,672.60/572,533,008.90 = 353,628,587.80/x
  3. Step 3: Cross multiply
    381,688,672.60x = 572,533,008.90 × 353,628,587.80
  4. Step 4: Simplify right side
    381,688,672.60x = 202,464,039,406,191,840
  5. Step 5: Solve for x
    x = 202,464,039,406,191,840/381,688,672.60
  6. Step 6: Final answer
    x = 530,442,881.70

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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.