Home / 748,608,429.60-1,122,987,682.80-257,256,986.40

Finding the Fourth Proportional to 748,608,429.60, 1,122,987,682.80 and 257,256,986.40

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Solution

The fourth proportional to 748,608,429.60, 1,122,987,682.80 and 257,256,986.40 is: 385,911,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,608,429.60 : 1,122,987,682.80 = 257,256,986.40 : x
  2. Step 2: Convert to fraction form
    748,608,429.60/1,122,987,682.80 = 257,256,986.40/x
  3. Step 3: Cross multiply
    748,608,429.60x = 1,122,987,682.80 × 257,256,986.40
  4. Step 4: Simplify right side
    748,608,429.60x = 288,896,427,041,447,104
  5. Step 5: Solve for x
    x = 288,896,427,041,447,104/748,608,429.60
  6. Step 6: Final answer
    x = 385,911,266.32

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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.