Home / 911,351,504.59-1,257,671,114.84-493,663,789.89

Finding the Fourth Proportional to 911,351,504.59, 1,257,671,114.84 and 493,663,789.89

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Solution

The fourth proportional to 911,351,504.59, 1,257,671,114.84 and 493,663,789.89 is: 681,259,301.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,351,504.59 : 1,257,671,114.84 = 493,663,789.89 : x
  2. Step 2: Convert to fraction form
    911,351,504.59/1,257,671,114.84 = 493,663,789.89/x
  3. Step 3: Cross multiply
    911,351,504.59x = 1,257,671,114.84 × 493,663,789.89
  4. Step 4: Simplify right side
    911,351,504.59x = 620,866,688,985,565,440
  5. Step 5: Solve for x
    x = 620,866,688,985,565,440/911,351,504.59
  6. Step 6: Final answer
    x = 681,259,301.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.