Home / 489,924,987.40-734,871,734.70-162,415,613.80

Finding the Fourth Proportional to 489,924,987.40, 734,871,734.70 and 162,415,613.80

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Solution

The fourth proportional to 489,924,987.40, 734,871,734.70 and 162,415,613.80 is: 243,618,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,924,987.40 : 734,871,734.70 = 162,415,613.80 : x
  2. Step 2: Convert to fraction form
    489,924,987.40/734,871,734.70 = 162,415,613.80/x
  3. Step 3: Cross multiply
    489,924,987.40x = 734,871,734.70 × 162,415,613.80
  4. Step 4: Simplify right side
    489,924,987.40x = 119,354,643,855,571,280
  5. Step 5: Solve for x
    x = 119,354,643,855,571,280/489,924,987.40
  6. Step 6: Final answer
    x = 243,618,200.59

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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.