Home / 1,146,171,480.80-1,715,289,128.40-686,439,586.40

Finding the Fourth Proportional to 1,146,171,480.80, 1,715,289,128.40 and 686,439,586.40

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Solution

The fourth proportional to 1,146,171,480.80, 1,715,289,128.40 and 686,439,586.40 is: 1,027,282,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,171,480.80 : 1,715,289,128.40 = 686,439,586.40 : x
  2. Step 2: Convert to fraction form
    1,146,171,480.80/1,715,289,128.40 = 686,439,586.40/x
  3. Step 3: Cross multiply
    1,146,171,480.80x = 1,715,289,128.40 × 686,439,586.40
  4. Step 4: Simplify right side
    1,146,171,480.80x = 1,177,442,359,855,312,640
  5. Step 5: Solve for x
    x = 1,177,442,359,855,312,640/1,146,171,480.80
  6. Step 6: Final answer
    x = 1,027,282,897.52

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.