Home / 21,138,397,593.48-31,686,652,411.07-9,926,200,828.80

Finding the Fourth Proportional to 21,138,397,593.48, 31,686,652,411.07 and 9,926,200,828.80

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Solution

The fourth proportional to 21,138,397,593.48, 31,686,652,411.07 and 9,926,200,828.80 is: 14,879,466,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,397,593.48 : 31,686,652,411.07 = 9,926,200,828.80 : x
  2. Step 2: Convert to fraction form
    21,138,397,593.48/31,686,652,411.07 = 9,926,200,828.80/x
  3. Step 3: Cross multiply
    21,138,397,593.48x = 31,686,652,411.07 × 9,926,200,828.80
  4. Step 4: Simplify right side
    21,138,397,593.48x = 314,528,075,424,610,910,208
  5. Step 5: Solve for x
    x = 314,528,075,424,610,910,208/21,138,397,593.48
  6. Step 6: Final answer
    x = 14,879,466,337.68

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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.