Home / 165,685,941.72-248,528,905.56-157,400,998.20

Finding the Fourth Proportional to 165,685,941.72, 248,528,905.56 and 157,400,998.20

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Solution

The fourth proportional to 165,685,941.72, 248,528,905.56 and 157,400,998.20 is: 236,101,490.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,685,941.72 : 248,528,905.56 = 157,400,998.20 : x
  2. Step 2: Convert to fraction form
    165,685,941.72/248,528,905.56 = 157,400,998.20/x
  3. Step 3: Cross multiply
    165,685,941.72x = 248,528,905.56 × 157,400,998.20
  4. Step 4: Simplify right side
    165,685,941.72x = 39,118,697,816,697,528
  5. Step 5: Solve for x
    x = 39,118,697,816,697,528/165,685,941.72
  6. Step 6: Final answer
    x = 236,101,490.63

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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.