Home / 12,585,941.70-18,878,912.55-10,566,465.90

Finding the Fourth Proportional to 12,585,941.70, 18,878,912.55 and 10,566,465.90

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Solution

The fourth proportional to 12,585,941.70, 18,878,912.55 and 10,566,465.90 is: 15,849,698.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585,941.70 : 18,878,912.55 = 10,566,465.90 : x
  2. Step 2: Convert to fraction form
    12,585,941.70/18,878,912.55 = 10,566,465.90/x
  3. Step 3: Cross multiply
    12,585,941.70x = 18,878,912.55 × 10,566,465.90
  4. Step 4: Simplify right side
    12,585,941.70x = 199,483,385,688,657.06
  5. Step 5: Solve for x
    x = 199,483,385,688,657.06/12,585,941.70
  6. Step 6: Final answer
    x = 15,849,698.85

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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.