Home / 72,583,977.60-108,875,966.40-65,865,513.60

Finding the Fourth Proportional to 72,583,977.60, 108,875,966.40 and 65,865,513.60

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Solution

The fourth proportional to 72,583,977.60, 108,875,966.40 and 65,865,513.60 is: 98,798,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583,977.60 : 108,875,966.40 = 65,865,513.60 : x
  2. Step 2: Convert to fraction form
    72,583,977.60/108,875,966.40 = 65,865,513.60/x
  3. Step 3: Cross multiply
    72,583,977.60x = 108,875,966.40 × 65,865,513.60
  4. Step 4: Simplify right side
    72,583,977.60x = 7,171,171,445,632,344
  5. Step 5: Solve for x
    x = 7,171,171,445,632,344/72,583,977.60
  6. Step 6: Final answer
    x = 98,798,270.40

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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.