Home / 993,116,583.72-1,370,543,405.70-553,083,434.28

Finding the Fourth Proportional to 993,116,583.72, 1,370,543,405.70 and 553,083,434.28

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Solution

The fourth proportional to 993,116,583.72, 1,370,543,405.70 and 553,083,434.28 is: 763,278,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,116,583.72 : 1,370,543,405.70 = 553,083,434.28 : x
  2. Step 2: Convert to fraction form
    993,116,583.72/1,370,543,405.70 = 553,083,434.28/x
  3. Step 3: Cross multiply
    993,116,583.72x = 1,370,543,405.70 × 553,083,434.28
  4. Step 4: Simplify right side
    993,116,583.72x = 758,024,853,654,363,264
  5. Step 5: Solve for x
    x = 758,024,853,654,363,264/993,116,583.72
  6. Step 6: Final answer
    x = 763,278,819.51

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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.