Home / 55,138,230.90-82,733,918.40-38,929,280.40

Finding the Fourth Proportional to 55,138,230.90, 82,733,918.40 and 38,929,280.40

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Solution

The fourth proportional to 55,138,230.90, 82,733,918.40 and 38,929,280.40 is: 58,412,681.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,138,230.90 : 82,733,918.40 = 38,929,280.40 : x
  2. Step 2: Convert to fraction form
    55,138,230.90/82,733,918.40 = 38,929,280.40/x
  3. Step 3: Cross multiply
    55,138,230.90x = 82,733,918.40 × 38,929,280.40
  4. Step 4: Simplify right side
    55,138,230.90x = 3,220,771,907,984,319.50
  5. Step 5: Solve for x
    x = 3,220,771,907,984,319.50/55,138,230.90
  6. Step 6: Final answer
    x = 58,412,681.28

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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.