Home / 31,886,868,000.80-47,830,302,001.20-18,608,495,751.20

Finding the Fourth Proportional to 31,886,868,000.80, 47,830,302,001.20 and 18,608,495,751.20

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Solution

The fourth proportional to 31,886,868,000.80, 47,830,302,001.20 and 18,608,495,751.20 is: 27,912,743,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,886,868,000.80 : 47,830,302,001.20 = 18,608,495,751.20 : x
  2. Step 2: Convert to fraction form
    31,886,868,000.80/47,830,302,001.20 = 18,608,495,751.20/x
  3. Step 3: Cross multiply
    31,886,868,000.80x = 47,830,302,001.20 × 18,608,495,751.20
  4. Step 4: Simplify right side
    31,886,868,000.80x = 890,049,971,567,943,090,176
  5. Step 5: Solve for x
    x = 890,049,971,567,943,090,176/31,886,868,000.80
  6. Step 6: Final answer
    x = 27,912,743,626.80

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Double scale
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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.