Home / 15,133,645,753.75-20,885,065,614.80-8,703,470,756.71

Finding the Fourth Proportional to 15,133,645,753.75, 20,885,065,614.80 and 8,703,470,756.71

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Solution

The fourth proportional to 15,133,645,753.75, 20,885,065,614.80 and 8,703,470,756.71 is: 12,011,154,535.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133,645,753.75 : 20,885,065,614.80 = 8,703,470,756.71 : x
  2. Step 2: Convert to fraction form
    15,133,645,753.75/20,885,065,614.80 = 8,703,470,756.71/x
  3. Step 3: Cross multiply
    15,133,645,753.75x = 20,885,065,614.80 × 8,703,470,756.71
  4. Step 4: Simplify right side
    15,133,645,753.75x = 181,772,557,830,381,338,624
  5. Step 5: Solve for x
    x = 181,772,557,830,381,338,624/15,133,645,753.75
  6. Step 6: Final answer
    x = 12,011,154,535.27

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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.