Home / 490,126,783,729.92-734,976,657,599.70-260,343,834,065.16

Finding the Fourth Proportional to 490,126,783,729.92, 734,976,657,599.70 and 260,343,834,065.16

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Solution

The fourth proportional to 490,126,783,729.92, 734,976,657,599.70 and 260,343,834,065.16 is: 390,402,335,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,126,783,729.92 : 734,976,657,599.70 = 260,343,834,065.16 : x
  2. Step 2: Convert to fraction form
    490,126,783,729.92/734,976,657,599.70 = 260,343,834,065.16/x
  3. Step 3: Cross multiply
    490,126,783,729.92x = 734,976,657,599.70 × 260,343,834,065.16
  4. Step 4: Simplify right side
    490,126,783,729.92x = 191,346,640,987,902,191,861,760
  5. Step 5: Solve for x
    x = 191,346,640,987,902,191,861,760/490,126,783,729.92
  6. Step 6: Final answer
    x = 390,402,335,354.40

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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.