Home / 21,020,437,751.85-29,005,083,720.81-12,766,914,602.73

Finding the Fourth Proportional to 21,020,437,751.85, 29,005,083,720.81 and 12,766,914,602.73

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Solution

The fourth proportional to 21,020,437,751.85, 29,005,083,720.81 and 12,766,914,602.73 is: 17,616,446,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,437,751.85 : 29,005,083,720.81 = 12,766,914,602.73 : x
  2. Step 2: Convert to fraction form
    21,020,437,751.85/29,005,083,720.81 = 12,766,914,602.73/x
  3. Step 3: Cross multiply
    21,020,437,751.85x = 29,005,083,720.81 × 12,766,914,602.73
  4. Step 4: Simplify right side
    21,020,437,751.85x = 370,305,426,908,640,903,168
  5. Step 5: Solve for x
    x = 370,305,426,908,640,903,168/21,020,437,751.85
  6. Step 6: Final answer
    x = 17,616,446,968.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.