Home / 121,563,438.40-182,190,328.80-49,678,638.40

Finding the Fourth Proportional to 121,563,438.40, 182,190,328.80 and 49,678,638.40

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Solution

The fourth proportional to 121,563,438.40, 182,190,328.80 and 49,678,638.40 is: 74,454,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,563,438.40 : 182,190,328.80 = 49,678,638.40 : x
  2. Step 2: Convert to fraction form
    121,563,438.40/182,190,328.80 = 49,678,638.40/x
  3. Step 3: Cross multiply
    121,563,438.40x = 182,190,328.80 × 49,678,638.40
  4. Step 4: Simplify right side
    121,563,438.40x = 9,050,967,464,432,306
  5. Step 5: Solve for x
    x = 9,050,967,464,432,306/121,563,438.40
  6. Step 6: Final answer
    x = 74,454,684.60

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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.