Home / 18,683,315.60-28,024,973.40-5,220,143.60

Finding the Fourth Proportional to 18,683,315.60, 28,024,973.40 and 5,220,143.60

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Solution

The fourth proportional to 18,683,315.60, 28,024,973.40 and 5,220,143.60 is: 7,830,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,315.60 : 28,024,973.40 = 5,220,143.60 : x
  2. Step 2: Convert to fraction form
    18,683,315.60/28,024,973.40 = 5,220,143.60/x
  3. Step 3: Cross multiply
    18,683,315.60x = 28,024,973.40 × 5,220,143.60
  4. Step 4: Simplify right side
    18,683,315.60x = 146,294,385,534,180.22
  5. Step 5: Solve for x
    x = 146,294,385,534,180.22/18,683,315.60
  6. Step 6: Final answer
    x = 7,830,215.40

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1.5x scale

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.