Home / 991,292,854.73-1,368,009,940.95-545,267,709.45

Finding the Fourth Proportional to 991,292,854.73, 1,368,009,940.95 and 545,267,709.45

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Solution

The fourth proportional to 991,292,854.73, 1,368,009,940.95 and 545,267,709.45 is: 752,483,631.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,292,854.73 : 1,368,009,940.95 = 545,267,709.45 : x
  2. Step 2: Convert to fraction form
    991,292,854.73/1,368,009,940.95 = 545,267,709.45/x
  3. Step 3: Cross multiply
    991,292,854.73x = 1,368,009,940.95 × 545,267,709.45
  4. Step 4: Simplify right side
    991,292,854.73x = 745,931,647,006,636,288
  5. Step 5: Solve for x
    x = 745,931,647,006,636,288/991,292,854.73
  6. Step 6: Final answer
    x = 752,483,631.30

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Double scale
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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.