Home / 28,688,771,660.24-39,590,642,398.56-15,828,410,972.22

Finding the Fourth Proportional to 28,688,771,660.24, 39,590,642,398.56 and 15,828,410,972.22

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Solution

The fourth proportional to 28,688,771,660.24, 39,590,642,398.56 and 15,828,410,972.22 is: 21,843,283,008.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688,771,660.24 : 39,590,642,398.56 = 15,828,410,972.22 : x
  2. Step 2: Convert to fraction form
    28,688,771,660.24/39,590,642,398.56 = 15,828,410,972.22/x
  3. Step 3: Cross multiply
    28,688,771,660.24x = 39,590,642,398.56 × 15,828,410,972.22
  4. Step 4: Simplify right side
    28,688,771,660.24x = 626,656,958,538,605,395,968
  5. Step 5: Solve for x
    x = 626,656,958,538,605,395,968/28,688,771,660.24
  6. Step 6: Final answer
    x = 21,843,283,008.42

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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.