Home / 25,127,977,655.20-37,691,966,482.80-21,258,142,391.20

Finding the Fourth Proportional to 25,127,977,655.20, 37,691,966,482.80 and 21,258,142,391.20

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Solution

The fourth proportional to 25,127,977,655.20, 37,691,966,482.80 and 21,258,142,391.20 is: 31,887,213,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,127,977,655.20 : 37,691,966,482.80 = 21,258,142,391.20 : x
  2. Step 2: Convert to fraction form
    25,127,977,655.20/37,691,966,482.80 = 21,258,142,391.20/x
  3. Step 3: Cross multiply
    25,127,977,655.20x = 37,691,966,482.80 × 21,258,142,391.20
  4. Step 4: Simplify right side
    25,127,977,655.20x = 801,261,190,495,700,385,792
  5. Step 5: Solve for x
    x = 801,261,190,495,700,385,792/25,127,977,655.20
  6. Step 6: Final answer
    x = 31,887,213,586.80

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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.