Home / 28,130,971.17-42,196,219.71-21,988,119.83

Finding the Fourth Proportional to 28,130,971.17, 42,196,219.71 and 21,988,119.83

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Solution

The fourth proportional to 28,130,971.17, 42,196,219.71 and 21,988,119.83 is: 32,981,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130,971.17 : 42,196,219.71 = 21,988,119.83 : x
  2. Step 2: Convert to fraction form
    28,130,971.17/42,196,219.71 = 21,988,119.83/x
  3. Step 3: Cross multiply
    28,130,971.17x = 42,196,219.71 × 21,988,119.83
  4. Step 4: Simplify right side
    28,130,971.17x = 927,815,535,246,547.12
  5. Step 5: Solve for x
    x = 927,815,535,246,547.12/28,130,971.17
  6. Step 6: Final answer
    x = 32,981,994.46

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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.