Home / 749,205,641.79-1,124,195,958.08-543,638,866.57

Finding the Fourth Proportional to 749,205,641.79, 1,124,195,958.08 and 543,638,866.57

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Solution

The fourth proportional to 749,205,641.79, 1,124,195,958.08 and 543,638,866.57 is: 815,739,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,205,641.79 : 1,124,195,958.08 = 543,638,866.57 : x
  2. Step 2: Convert to fraction form
    749,205,641.79/1,124,195,958.08 = 543,638,866.57/x
  3. Step 3: Cross multiply
    749,205,641.79x = 1,124,195,958.08 × 543,638,866.57
  4. Step 4: Simplify right side
    749,205,641.79x = 611,156,616,451,735,040
  5. Step 5: Solve for x
    x = 611,156,616,451,735,040/749,205,641.79
  6. Step 6: Final answer
    x = 815,739,474.40

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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.