Home / 256,651,330.40-384,976,995.60-188,626,882.40

Finding the Fourth Proportional to 256,651,330.40, 384,976,995.60 and 188,626,882.40

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Solution

The fourth proportional to 256,651,330.40, 384,976,995.60 and 188,626,882.40 is: 282,940,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,651,330.40 : 384,976,995.60 = 188,626,882.40 : x
  2. Step 2: Convert to fraction form
    256,651,330.40/384,976,995.60 = 188,626,882.40/x
  3. Step 3: Cross multiply
    256,651,330.40x = 384,976,995.60 × 188,626,882.40
  4. Step 4: Simplify right side
    256,651,330.40x = 72,617,010,475,746,528
  5. Step 5: Solve for x
    x = 72,617,010,475,746,528/256,651,330.40
  6. Step 6: Final answer
    x = 282,940,323.60

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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.