Home / 910,700,909.45-1,256,767,675.52-493,013,194.74

Finding the Fourth Proportional to 910,700,909.45, 1,256,767,675.52 and 493,013,194.74

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Solution

The fourth proportional to 910,700,909.45, 1,256,767,675.52 and 493,013,194.74 is: 680,358,436.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,700,909.45 : 1,256,767,675.52 = 493,013,194.74 : x
  2. Step 2: Convert to fraction form
    910,700,909.45/1,256,767,675.52 = 493,013,194.74/x
  3. Step 3: Cross multiply
    910,700,909.45x = 1,256,767,675.52 × 493,013,194.74
  4. Step 4: Simplify right side
    910,700,909.45x = 619,603,046,753,964,032
  5. Step 5: Solve for x
    x = 619,603,046,753,964,032/910,700,909.45
  6. Step 6: Final answer
    x = 680,358,436.37

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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.