Home / 660,193,819.20-989,660,872.80-245,559,614.40

Finding the Fourth Proportional to 660,193,819.20, 989,660,872.80 and 245,559,614.40

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Solution

The fourth proportional to 660,193,819.20, 989,660,872.80 and 245,559,614.40 is: 368,105,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,193,819.20 : 989,660,872.80 = 245,559,614.40 : x
  2. Step 2: Convert to fraction form
    660,193,819.20/989,660,872.80 = 245,559,614.40/x
  3. Step 3: Cross multiply
    660,193,819.20x = 989,660,872.80 × 245,559,614.40
  4. Step 4: Simplify right side
    660,193,819.20x = 243,020,742,311,535,456
  5. Step 5: Solve for x
    x = 243,020,742,311,535,456/660,193,819.20
  6. Step 6: Final answer
    x = 368,105,146.16

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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.