Home / 809,859,068.88-1,117,599,951.03-438,572,603.76

Finding the Fourth Proportional to 809,859,068.88, 1,117,599,951.03 and 438,572,603.76

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Solution

The fourth proportional to 809,859,068.88, 1,117,599,951.03 and 438,572,603.76 is: 605,227,180.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,859,068.88 : 1,117,599,951.03 = 438,572,603.76 : x
  2. Step 2: Convert to fraction form
    809,859,068.88/1,117,599,951.03 = 438,572,603.76/x
  3. Step 3: Cross multiply
    809,859,068.88x = 1,117,599,951.03 × 438,572,603.76
  4. Step 4: Simplify right side
    809,859,068.88x = 490,148,720,485,275,584
  5. Step 5: Solve for x
    x = 490,148,720,485,275,584/809,859,068.88
  6. Step 6: Final answer
    x = 605,227,180.04

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1.5x scale

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.