Home / 28,434,479,278.94-39,220,687,341.55-18,286,037,730.30

Finding the Fourth Proportional to 28,434,479,278.94, 39,220,687,341.55 and 18,286,037,730.30

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Solution

The fourth proportional to 28,434,479,278.94, 39,220,687,341.55 and 18,286,037,730.30 is: 25,222,581,412.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434,479,278.94 : 39,220,687,341.55 = 18,286,037,730.30 : x
  2. Step 2: Convert to fraction form
    28,434,479,278.94/39,220,687,341.55 = 18,286,037,730.30/x
  3. Step 3: Cross multiply
    28,434,479,278.94x = 39,220,687,341.55 × 18,286,037,730.30
  4. Step 4: Simplify right side
    28,434,479,278.94x = 717,190,968,535,958,683,648
  5. Step 5: Solve for x
    x = 717,190,968,535,958,683,648/28,434,479,278.94
  6. Step 6: Final answer
    x = 25,222,581,412.53

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Double scale
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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.