Home / 21,220,090,615.68-29,283,816,090.30-11,575,030,774.26

Finding the Fourth Proportional to 21,220,090,615.68, 29,283,816,090.30 and 11,575,030,774.26

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Solution

The fourth proportional to 21,220,090,615.68, 29,283,816,090.30 and 11,575,030,774.26 is: 15,973,592,128.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220,090,615.68 : 29,283,816,090.30 = 11,575,030,774.26 : x
  2. Step 2: Convert to fraction form
    21,220,090,615.68/29,283,816,090.30 = 11,575,030,774.26/x
  3. Step 3: Cross multiply
    21,220,090,615.68x = 29,283,816,090.30 × 11,575,030,774.26
  4. Step 4: Simplify right side
    21,220,090,615.68x = 338,961,072,432,992,681,984
  5. Step 5: Solve for x
    x = 338,961,072,432,992,681,984/21,220,090,615.68
  6. Step 6: Final answer
    x = 15,973,592,128.89

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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.