Home / 282,355,954.48-389,660,668.08-156,913,438

Finding the Fourth Proportional to 282,355,954.48, 389,660,668.08 and 156,913,438

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Solution

The fourth proportional to 282,355,954.48, 389,660,668.08 and 156,913,438 is: 216,545,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,355,954.48 : 389,660,668.08 = 156,913,438 : x
  2. Step 2: Convert to fraction form
    282,355,954.48/389,660,668.08 = 156,913,438/x
  3. Step 3: Cross multiply
    282,355,954.48x = 389,660,668.08 × 156,913,438
  4. Step 4: Simplify right side
    282,355,954.48x = 61,142,995,081,809,656
  5. Step 5: Solve for x
    x = 61,142,995,081,809,656/282,355,954.48
  6. Step 6: Final answer
    x = 216,545,796.58

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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.