Home / 1,178,661,420.32-1,767,690,454.56-349,421,148.80

Finding the Fourth Proportional to 1,178,661,420.32, 1,767,690,454.56 and 349,421,148.80

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Solution

The fourth proportional to 1,178,661,420.32, 1,767,690,454.56 and 349,421,148.80 is: 524,042,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,661,420.32 : 1,767,690,454.56 = 349,421,148.80 : x
  2. Step 2: Convert to fraction form
    1,178,661,420.32/1,767,690,454.56 = 349,421,148.80/x
  3. Step 3: Cross multiply
    1,178,661,420.32x = 1,767,690,454.56 × 349,421,148.80
  4. Step 4: Simplify right side
    1,178,661,420.32x = 617,668,429,355,149,440
  5. Step 5: Solve for x
    x = 617,668,429,355,149,440/1,178,661,420.32
  6. Step 6: Final answer
    x = 524,042,289.59

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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.