Home / 12,528,035.70-18,792,053.55-10,288,547.70

Finding the Fourth Proportional to 12,528,035.70, 18,792,053.55 and 10,288,547.70

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Solution

The fourth proportional to 12,528,035.70, 18,792,053.55 and 10,288,547.70 is: 15,432,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,035.70 : 18,792,053.55 = 10,288,547.70 : x
  2. Step 2: Convert to fraction form
    12,528,035.70/18,792,053.55 = 10,288,547.70/x
  3. Step 3: Cross multiply
    12,528,035.70x = 18,792,053.55 × 10,288,547.70
  4. Step 4: Simplify right side
    12,528,035.70x = 193,342,939,330,129.34
  5. Step 5: Solve for x
    x = 193,342,939,330,129.34/12,528,035.70
  6. Step 6: Final answer
    x = 15,432,821.55

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Similar ratio
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1.5x scale

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.