Home / 15,133,645,752.75-20,885,065,613.42-8,703,470,755.71

Finding the Fourth Proportional to 15,133,645,752.75, 20,885,065,613.42 and 8,703,470,755.71

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Solution

The fourth proportional to 15,133,645,752.75, 20,885,065,613.42 and 8,703,470,755.71 is: 12,011,154,533.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133,645,752.75 : 20,885,065,613.42 = 8,703,470,755.71 : x
  2. Step 2: Convert to fraction form
    15,133,645,752.75/20,885,065,613.42 = 8,703,470,755.71/x
  3. Step 3: Cross multiply
    15,133,645,752.75x = 20,885,065,613.42 × 8,703,470,755.71
  4. Step 4: Simplify right side
    15,133,645,752.75x = 181,772,557,797,450,678,272
  5. Step 5: Solve for x
    x = 181,772,557,797,450,678,272/15,133,645,752.75
  6. Step 6: Final answer
    x = 12,011,154,533.89

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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.