Home / 72,687,683.60-109,031,525.40-49,729,432.40

Finding the Fourth Proportional to 72,687,683.60, 109,031,525.40 and 49,729,432.40

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Solution

The fourth proportional to 72,687,683.60, 109,031,525.40 and 49,729,432.40 is: 74,594,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,687,683.60 : 109,031,525.40 = 49,729,432.40 : x
  2. Step 2: Convert to fraction form
    72,687,683.60/109,031,525.40 = 49,729,432.40/x
  3. Step 3: Cross multiply
    72,687,683.60x = 109,031,525.40 × 49,729,432.40
  4. Step 4: Simplify right side
    72,687,683.60x = 5,422,075,871,848,183
  5. Step 5: Solve for x
    x = 5,422,075,871,848,183/72,687,683.60
  6. Step 6: Final answer
    x = 74,594,148.60

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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.