Home / 21,615,688,302.72-29,814,272,266.40-19,837,284,637.92

Finding the Fourth Proportional to 21,615,688,302.72, 29,814,272,266.40 and 19,837,284,637.92

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Solution

The fourth proportional to 21,615,688,302.72, 29,814,272,266.40 and 19,837,284,637.92 is: 27,361,340,381.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615,688,302.72 : 29,814,272,266.40 = 19,837,284,637.92 : x
  2. Step 2: Convert to fraction form
    21,615,688,302.72/29,814,272,266.40 = 19,837,284,637.92/x
  3. Step 3: Cross multiply
    21,615,688,302.72x = 29,814,272,266.40 × 19,837,284,637.92
  4. Step 4: Simplify right side
    21,615,688,302.72x = 591,434,205,221,021,024,256
  5. Step 5: Solve for x
    x = 591,434,205,221,021,024,256/21,615,688,302.72
  6. Step 6: Final answer
    x = 27,361,340,381.03

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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.