Home / 74,861,690.40-112,292,535.60-21,009,002.40

Finding the Fourth Proportional to 74,861,690.40, 112,292,535.60 and 21,009,002.40

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Solution

The fourth proportional to 74,861,690.40, 112,292,535.60 and 21,009,002.40 is: 31,513,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,861,690.40 : 112,292,535.60 = 21,009,002.40 : x
  2. Step 2: Convert to fraction form
    74,861,690.40/112,292,535.60 = 21,009,002.40/x
  3. Step 3: Cross multiply
    74,861,690.40x = 112,292,535.60 × 21,009,002.40
  4. Step 4: Simplify right side
    74,861,690.40x = 2,359,154,149,922,485
  5. Step 5: Solve for x
    x = 2,359,154,149,922,485/74,861,690.40
  6. Step 6: Final answer
    x = 31,513,503.60

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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.