Home / 938,871,147.60-1,408,306,721.40-550,879,851.60

Finding the Fourth Proportional to 938,871,147.60, 1,408,306,721.40 and 550,879,851.60

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Solution

The fourth proportional to 938,871,147.60, 1,408,306,721.40 and 550,879,851.60 is: 826,319,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,871,147.60 : 1,408,306,721.40 = 550,879,851.60 : x
  2. Step 2: Convert to fraction form
    938,871,147.60/1,408,306,721.40 = 550,879,851.60/x
  3. Step 3: Cross multiply
    938,871,147.60x = 1,408,306,721.40 × 550,879,851.60
  4. Step 4: Simplify right side
    938,871,147.60x = 775,807,797,692,114,688
  5. Step 5: Solve for x
    x = 775,807,797,692,114,688/938,871,147.60
  6. Step 6: Final answer
    x = 826,319,777.40

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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.