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Finding the Fourth Proportional to 498,249,530.40, 747,374,295.60 and 207,019,862.40

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Solution

The fourth proportional to 498,249,530.40, 747,374,295.60 and 207,019,862.40 is: 310,529,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,249,530.40 : 747,374,295.60 = 207,019,862.40 : x
  2. Step 2: Convert to fraction form
    498,249,530.40/747,374,295.60 = 207,019,862.40/x
  3. Step 3: Cross multiply
    498,249,530.40x = 747,374,295.60 × 207,019,862.40
  4. Step 4: Simplify right side
    498,249,530.40x = 154,721,323,836,408,928
  5. Step 5: Solve for x
    x = 154,721,323,836,408,928/498,249,530.40
  6. Step 6: Final answer
    x = 310,529,793.60

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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.