Home / 355,287,739.20-532,931,608.80-274,566,638.40

Finding the Fourth Proportional to 355,287,739.20, 532,931,608.80 and 274,566,638.40

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Solution

The fourth proportional to 355,287,739.20, 532,931,608.80 and 274,566,638.40 is: 411,849,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,287,739.20 : 532,931,608.80 = 274,566,638.40 : x
  2. Step 2: Convert to fraction form
    355,287,739.20/532,931,608.80 = 274,566,638.40/x
  3. Step 3: Cross multiply
    355,287,739.20x = 532,931,608.80 × 274,566,638.40
  4. Step 4: Simplify right side
    355,287,739.20x = 146,325,240,325,319,840
  5. Step 5: Solve for x
    x = 146,325,240,325,319,840/355,287,739.20
  6. Step 6: Final answer
    x = 411,849,957.60

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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.