Home / 212,735,973.30-318,880,011.15-83,293,566.90

Finding the Fourth Proportional to 212,735,973.30, 318,880,011.15 and 83,293,566.90

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Solution

The fourth proportional to 212,735,973.30, 318,880,011.15 and 83,293,566.90 is: 124,852,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,735,973.30 : 318,880,011.15 = 83,293,566.90 : x
  2. Step 2: Convert to fraction form
    212,735,973.30/318,880,011.15 = 83,293,566.90/x
  3. Step 3: Cross multiply
    212,735,973.30x = 318,880,011.15 × 83,293,566.90
  4. Step 4: Simplify right side
    212,735,973.30x = 26,560,653,541,795,272
  5. Step 5: Solve for x
    x = 26,560,653,541,795,272/212,735,973.30
  6. Step 6: Final answer
    x = 124,852,666.57

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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.