Home / 143,788,674.90-215,683,012.35-120,830,423.70

Finding the Fourth Proportional to 143,788,674.90, 215,683,012.35 and 120,830,423.70

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Solution

The fourth proportional to 143,788,674.90, 215,683,012.35 and 120,830,423.70 is: 181,245,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,788,674.90 : 215,683,012.35 = 120,830,423.70 : x
  2. Step 2: Convert to fraction form
    143,788,674.90/215,683,012.35 = 120,830,423.70/x
  3. Step 3: Cross multiply
    143,788,674.90x = 215,683,012.35 × 120,830,423.70
  4. Step 4: Simplify right side
    143,788,674.90x = 26,061,069,767,142,832
  5. Step 5: Solve for x
    x = 26,061,069,767,142,832/143,788,674.90
  6. Step 6: Final answer
    x = 181,245,635.55

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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.