Home / 660,481,106.28-990,721,834.36-194,142,549.48

Finding the Fourth Proportional to 660,481,106.28, 990,721,834.36 and 194,142,549.48

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Solution

The fourth proportional to 660,481,106.28, 990,721,834.36 and 194,142,549.48 is: 291,213,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,481,106.28 : 990,721,834.36 = 194,142,549.48 : x
  2. Step 2: Convert to fraction form
    660,481,106.28/990,721,834.36 = 194,142,549.48/x
  3. Step 3: Cross multiply
    660,481,106.28x = 990,721,834.36 × 194,142,549.48
  4. Step 4: Simplify right side
    660,481,106.28x = 192,341,262,748,152,672
  5. Step 5: Solve for x
    x = 192,341,262,748,152,672/660,481,106.28
  6. Step 6: Final answer
    x = 291,213,875.64

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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.