Home / 21,430,460,722.23-29,575,692,375.84-12,857,210,001.27

Finding the Fourth Proportional to 21,430,460,722.23, 29,575,692,375.84 and 12,857,210,001.27

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Solution

The fourth proportional to 21,430,460,722.23, 29,575,692,375.84 and 12,857,210,001.27 is: 17,743,943,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430,460,722.23 : 29,575,692,375.84 = 12,857,210,001.27 : x
  2. Step 2: Convert to fraction form
    21,430,460,722.23/29,575,692,375.84 = 12,857,210,001.27/x
  3. Step 3: Cross multiply
    21,430,460,722.23x = 29,575,692,375.84 × 12,857,210,001.27
  4. Step 4: Simplify right side
    21,430,460,722.23x = 380,260,887,809,134,952,448
  5. Step 5: Solve for x
    x = 380,260,887,809,134,952,448/21,430,460,722.23
  6. Step 6: Final answer
    x = 17,743,943,666.81

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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.