Home / 139,831,008.40-209,746,512.60-88,938,643.60

Finding the Fourth Proportional to 139,831,008.40, 209,746,512.60 and 88,938,643.60

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Solution

The fourth proportional to 139,831,008.40, 209,746,512.60 and 88,938,643.60 is: 133,407,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,831,008.40 : 209,746,512.60 = 88,938,643.60 : x
  2. Step 2: Convert to fraction form
    139,831,008.40/209,746,512.60 = 88,938,643.60/x
  3. Step 3: Cross multiply
    139,831,008.40x = 209,746,512.60 × 88,938,643.60
  4. Step 4: Simplify right side
    139,831,008.40x = 18,654,570,330,474,308
  5. Step 5: Solve for x
    x = 18,654,570,330,474,308/139,831,008.40
  6. Step 6: Final answer
    x = 133,407,965.40

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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.