Home / 209,958,436.80-314,937,655.20-73,657,598.40

Finding the Fourth Proportional to 209,958,436.80, 314,937,655.20 and 73,657,598.40

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Solution

The fourth proportional to 209,958,436.80, 314,937,655.20 and 73,657,598.40 is: 110,486,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,958,436.80 : 314,937,655.20 = 73,657,598.40 : x
  2. Step 2: Convert to fraction form
    209,958,436.80/314,937,655.20 = 73,657,598.40/x
  3. Step 3: Cross multiply
    209,958,436.80x = 314,937,655.20 × 73,657,598.40
  4. Step 4: Simplify right side
    209,958,436.80x = 23,197,551,327,759,272
  5. Step 5: Solve for x
    x = 23,197,551,327,759,272/209,958,436.80
  6. Step 6: Final answer
    x = 110,486,397.60

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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.