Home / 19,315,584,630.40-28,973,376,945.60-13,438,272,323.20

Finding the Fourth Proportional to 19,315,584,630.40, 28,973,376,945.60 and 13,438,272,323.20

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Solution

The fourth proportional to 19,315,584,630.40, 28,973,376,945.60 and 13,438,272,323.20 is: 20,157,408,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,584,630.40 : 28,973,376,945.60 = 13,438,272,323.20 : x
  2. Step 2: Convert to fraction form
    19,315,584,630.40/28,973,376,945.60 = 13,438,272,323.20/x
  3. Step 3: Cross multiply
    19,315,584,630.40x = 28,973,376,945.60 × 13,438,272,323.20
  4. Step 4: Simplify right side
    19,315,584,630.40x = 389,352,129,517,697,433,600
  5. Step 5: Solve for x
    x = 389,352,129,517,697,433,600/19,315,584,630.40
  6. Step 6: Final answer
    x = 20,157,408,484.80

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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.