Home / 442,642,247.40-664,079,492.70-170,021,908.20

Finding the Fourth Proportional to 442,642,247.40, 664,079,492.70 and 170,021,908.20

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Solution

The fourth proportional to 442,642,247.40, 664,079,492.70 and 170,021,908.20 is: 255,077,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,642,247.40 : 664,079,492.70 = 170,021,908.20 : x
  2. Step 2: Convert to fraction form
    442,642,247.40/664,079,492.70 = 170,021,908.20/x
  3. Step 3: Cross multiply
    442,642,247.40x = 664,079,492.70 × 170,021,908.20
  4. Step 4: Simplify right side
    442,642,247.40x = 112,908,062,545,341,968
  5. Step 5: Solve for x
    x = 112,908,062,545,341,968/442,642,247.40
  6. Step 6: Final answer
    x = 255,077,465.40

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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.