Home / 12,457,747.40-18,680,400.30-5,718,547.40

Finding the Fourth Proportional to 12,457,747.40, 18,680,400.30 and 5,718,547.40

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Solution

The fourth proportional to 12,457,747.40, 18,680,400.30 and 5,718,547.40 is: 8,574,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,747.40 : 18,680,400.30 = 5,718,547.40 : x
  2. Step 2: Convert to fraction form
    12,457,747.40/18,680,400.30 = 5,718,547.40/x
  3. Step 3: Cross multiply
    12,457,747.40x = 18,680,400.30 × 5,718,547.40
  4. Step 4: Simplify right side
    12,457,747.40x = 106,824,754,566,524.23
  5. Step 5: Solve for x
    x = 106,824,754,566,524.23/12,457,747.40
  6. Step 6: Final answer
    x = 8,574,965.53

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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.