Home / 238,359,904.20-357,539,856.30-212,661,779.40

Finding the Fourth Proportional to 238,359,904.20, 357,539,856.30 and 212,661,779.40

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Solution

The fourth proportional to 238,359,904.20, 357,539,856.30 and 212,661,779.40 is: 318,992,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,359,904.20 : 357,539,856.30 = 212,661,779.40 : x
  2. Step 2: Convert to fraction form
    238,359,904.20/357,539,856.30 = 212,661,779.40/x
  3. Step 3: Cross multiply
    238,359,904.20x = 357,539,856.30 × 212,661,779.40
  4. Step 4: Simplify right side
    238,359,904.20x = 76,035,062,047,178,304
  5. Step 5: Solve for x
    x = 76,035,062,047,178,304/238,359,904.20
  6. Step 6: Final answer
    x = 318,992,669.10

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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.