Home / 19,929,527,485.48-29,894,319,999.65-8,138,645,957.60

Finding the Fourth Proportional to 19,929,527,485.48, 29,894,319,999.65 and 8,138,645,957.60

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Solution

The fourth proportional to 19,929,527,485.48, 29,894,319,999.65 and 8,138,645,957.60 is: 12,207,980,685.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929,527,485.48 : 29,894,319,999.65 = 8,138,645,957.60 : x
  2. Step 2: Convert to fraction form
    19,929,527,485.48/29,894,319,999.65 = 8,138,645,957.60/x
  3. Step 3: Cross multiply
    19,929,527,485.48x = 29,894,319,999.65 × 8,138,645,957.60
  4. Step 4: Simplify right side
    19,929,527,485.48x = 243,299,286,620,352,315,392
  5. Step 5: Solve for x
    x = 243,299,286,620,352,315,392/19,929,527,485.48
  6. Step 6: Final answer
    x = 12,207,980,685.82

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1.5x scale

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.