Home / 10,429,952,457.60-15,644,928,686.40-7,981,072,329.60

Finding the Fourth Proportional to 10,429,952,457.60, 15,644,928,686.40 and 7,981,072,329.60

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Solution

The fourth proportional to 10,429,952,457.60, 15,644,928,686.40 and 7,981,072,329.60 is: 11,971,608,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429,952,457.60 : 15,644,928,686.40 = 7,981,072,329.60 : x
  2. Step 2: Convert to fraction form
    10,429,952,457.60/15,644,928,686.40 = 7,981,072,329.60/x
  3. Step 3: Cross multiply
    10,429,952,457.60x = 15,644,928,686.40 × 7,981,072,329.60
  4. Step 4: Simplify right side
    10,429,952,457.60x = 124,863,307,437,592,313,856
  5. Step 5: Solve for x
    x = 124,863,307,437,592,313,856/10,429,952,457.60
  6. Step 6: Final answer
    x = 11,971,608,494.40

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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.