Home / 354,641,138.40-532,297,630.80-218,592,242.40

Finding the Fourth Proportional to 354,641,138.40, 532,297,630.80 and 218,592,242.40

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Solution

The fourth proportional to 354,641,138.40, 532,297,630.80 and 218,592,242.40 is: 328,095,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,641,138.40 : 532,297,630.80 = 218,592,242.40 : x
  2. Step 2: Convert to fraction form
    354,641,138.40/532,297,630.80 = 218,592,242.40/x
  3. Step 3: Cross multiply
    354,641,138.40x = 532,297,630.80 × 218,592,242.40
  4. Step 4: Simplify right side
    354,641,138.40x = 116,356,132,740,779,312
  5. Step 5: Solve for x
    x = 116,356,132,740,779,312/354,641,138.40
  6. Step 6: Final answer
    x = 328,095,418.56

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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.