Home / 772,466,144.70-1,158,699,217.05-688,285,890.30

Finding the Fourth Proportional to 772,466,144.70, 1,158,699,217.05 and 688,285,890.30

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Solution

The fourth proportional to 772,466,144.70, 1,158,699,217.05 and 688,285,890.30 is: 1,032,428,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,466,144.70 : 1,158,699,217.05 = 688,285,890.30 : x
  2. Step 2: Convert to fraction form
    772,466,144.70/1,158,699,217.05 = 688,285,890.30/x
  3. Step 3: Cross multiply
    772,466,144.70x = 1,158,699,217.05 × 688,285,890.30
  4. Step 4: Simplify right side
    772,466,144.70x = 797,516,322,197,172,096
  5. Step 5: Solve for x
    x = 797,516,322,197,172,096/772,466,144.70
  6. Step 6: Final answer
    x = 1,032,428,835.45

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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.