Home / 1,288,908,499.39-1,778,383,455.87-752,756,110.90

Finding the Fourth Proportional to 1,288,908,499.39, 1,778,383,455.87 and 752,756,110.90

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Solution

The fourth proportional to 1,288,908,499.39, 1,778,383,455.87 and 752,756,110.90 is: 1,038,622,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,908,499.39 : 1,778,383,455.87 = 752,756,110.90 : x
  2. Step 2: Convert to fraction form
    1,288,908,499.39/1,778,383,455.87 = 752,756,110.90/x
  3. Step 3: Cross multiply
    1,288,908,499.39x = 1,778,383,455.87 × 752,756,110.90
  4. Step 4: Simplify right side
    1,288,908,499.39x = 1,338,689,013,929,602,816
  5. Step 5: Solve for x
    x = 1,338,689,013,929,602,816/1,288,908,499.39
  6. Step 6: Final answer
    x = 1,038,622,225.37

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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.