Home / 103,275,782.64-142,523,715.48-56,867,697.30

Finding the Fourth Proportional to 103,275,782.64, 142,523,715.48 and 56,867,697.30

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Solution

The fourth proportional to 103,275,782.64, 142,523,715.48 and 56,867,697.30 is: 78,479,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,275,782.64 : 142,523,715.48 = 56,867,697.30 : x
  2. Step 2: Convert to fraction form
    103,275,782.64/142,523,715.48 = 56,867,697.30/x
  3. Step 3: Cross multiply
    103,275,782.64x = 142,523,715.48 × 56,867,697.30
  4. Step 4: Simplify right side
    103,275,782.64x = 8,104,995,509,987,963
  5. Step 5: Solve for x
    x = 8,104,995,509,987,963/103,275,782.64
  6. Step 6: Final answer
    x = 78,479,148.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.