Home / 279,938,672.60-419,908,008.90-143,637,834.20

Finding the Fourth Proportional to 279,938,672.60, 419,908,008.90 and 143,637,834.20

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Solution

The fourth proportional to 279,938,672.60, 419,908,008.90 and 143,637,834.20 is: 215,456,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,672.60 : 419,908,008.90 = 143,637,834.20 : x
  2. Step 2: Convert to fraction form
    279,938,672.60/419,908,008.90 = 143,637,834.20/x
  3. Step 3: Cross multiply
    279,938,672.60x = 419,908,008.90 × 143,637,834.20
  4. Step 4: Simplify right side
    279,938,672.60x = 60,314,676,961,630,312
  5. Step 5: Solve for x
    x = 60,314,676,961,630,312/279,938,672.60
  6. Step 6: Final answer
    x = 215,456,751.30

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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.