Home / 749,958,986.40-1,124,042,684.40-386,266,135.20

Finding the Fourth Proportional to 749,958,986.40, 1,124,042,684.40 and 386,266,135.20

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Solution

The fourth proportional to 749,958,986.40, 1,124,042,684.40 and 386,266,135.20 is: 578,937,823.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,958,986.40 : 1,124,042,684.40 = 386,266,135.20 : x
  2. Step 2: Convert to fraction form
    749,958,986.40/1,124,042,684.40 = 386,266,135.20/x
  3. Step 3: Cross multiply
    749,958,986.40x = 1,124,042,684.40 × 386,266,135.20
  4. Step 4: Simplify right side
    749,958,986.40x = 434,179,623,503,021,376
  5. Step 5: Solve for x
    x = 434,179,623,503,021,376/749,958,986.40
  6. Step 6: Final answer
    x = 578,937,823.77

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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.