Home / 771,762,749.32-1,157,641,833.53-219,065,645.55

Finding the Fourth Proportional to 771,762,749.32, 1,157,641,833.53 and 219,065,645.55

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Solution

The fourth proportional to 771,762,749.32, 1,157,641,833.53 and 219,065,645.55 is: 328,597,818.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,762,749.32 : 1,157,641,833.53 = 219,065,645.55 : x
  2. Step 2: Convert to fraction form
    771,762,749.32/1,157,641,833.53 = 219,065,645.55/x
  3. Step 3: Cross multiply
    771,762,749.32x = 1,157,641,833.53 × 219,065,645.55
  4. Step 4: Simplify right side
    771,762,749.32x = 253,599,555,578,482,784
  5. Step 5: Solve for x
    x = 253,599,555,578,482,784/771,762,749.32
  6. Step 6: Final answer
    x = 328,597,818.18

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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.