Home / 25,307,063,510.80-37,960,595,266.20-21,205,189,296.40

Finding the Fourth Proportional to 25,307,063,510.80, 37,960,595,266.20 and 21,205,189,296.40

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Solution

The fourth proportional to 25,307,063,510.80, 37,960,595,266.20 and 21,205,189,296.40 is: 31,807,783,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,307,063,510.80 : 37,960,595,266.20 = 21,205,189,296.40 : x
  2. Step 2: Convert to fraction form
    25,307,063,510.80/37,960,595,266.20 = 21,205,189,296.40/x
  3. Step 3: Cross multiply
    25,307,063,510.80x = 37,960,595,266.20 × 21,205,189,296.40
  4. Step 4: Simplify right side
    25,307,063,510.80x = 804,961,608,423,796,768,768
  5. Step 5: Solve for x
    x = 804,961,608,423,796,768,768/25,307,063,510.80
  6. Step 6: Final answer
    x = 31,807,783,944.60

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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.