Home / 151,506,007.84-209,078,165.47-81,891,388.50

Finding the Fourth Proportional to 151,506,007.84, 209,078,165.47 and 81,891,388.50

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Solution

The fourth proportional to 151,506,007.84, 209,078,165.47 and 81,891,388.50 is: 113,010,048.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,506,007.84 : 209,078,165.47 = 81,891,388.50 : x
  2. Step 2: Convert to fraction form
    151,506,007.84/209,078,165.47 = 81,891,388.50/x
  3. Step 3: Cross multiply
    151,506,007.84x = 209,078,165.47 × 81,891,388.50
  4. Step 4: Simplify right side
    151,506,007.84x = 17,121,701,274,536,240
  5. Step 5: Solve for x
    x = 17,121,701,274,536,240/151,506,007.84
  6. Step 6: Final answer
    x = 113,010,048.37

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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.