Home / 15,386,904.67-21,231,848.46-8,772,346.42

Finding the Fourth Proportional to 15,386,904.67, 21,231,848.46 and 8,772,346.42

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Solution

The fourth proportional to 15,386,904.67, 21,231,848.46 and 8,772,346.42 is: 12,104,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386,904.67 : 21,231,848.46 = 8,772,346.42 : x
  2. Step 2: Convert to fraction form
    15,386,904.67/21,231,848.46 = 8,772,346.42/x
  3. Step 3: Cross multiply
    15,386,904.67x = 21,231,848.46 × 8,772,346.42
  4. Step 4: Simplify right side
    15,386,904.67x = 186,253,129,828,063.53
  5. Step 5: Solve for x
    x = 186,253,129,828,063.53/15,386,904.67
  6. Step 6: Final answer
    x = 12,104,652.22

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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.