Home / 243,139,318.40-364,708,977.60-72,938,230.40

Finding the Fourth Proportional to 243,139,318.40, 364,708,977.60 and 72,938,230.40

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Solution

The fourth proportional to 243,139,318.40, 364,708,977.60 and 72,938,230.40 is: 109,407,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,139,318.40 : 364,708,977.60 = 72,938,230.40 : x
  2. Step 2: Convert to fraction form
    243,139,318.40/364,708,977.60 = 72,938,230.40/x
  3. Step 3: Cross multiply
    243,139,318.40x = 364,708,977.60 × 72,938,230.40
  4. Step 4: Simplify right side
    243,139,318.40x = 26,601,227,437,137,244
  5. Step 5: Solve for x
    x = 26,601,227,437,137,244/243,139,318.40
  6. Step 6: Final answer
    x = 109,407,345.60

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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.