Home / 727,668,014.40-1,091,502,021.60-290,752,653.60

Finding the Fourth Proportional to 727,668,014.40, 1,091,502,021.60 and 290,752,653.60

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Solution

The fourth proportional to 727,668,014.40, 1,091,502,021.60 and 290,752,653.60 is: 436,128,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,668,014.40 : 1,091,502,021.60 = 290,752,653.60 : x
  2. Step 2: Convert to fraction form
    727,668,014.40/1,091,502,021.60 = 290,752,653.60/x
  3. Step 3: Cross multiply
    727,668,014.40x = 1,091,502,021.60 × 290,752,653.60
  4. Step 4: Simplify right side
    727,668,014.40x = 317,357,109,189,964,544
  5. Step 5: Solve for x
    x = 317,357,109,189,964,544/727,668,014.40
  6. Step 6: Final answer
    x = 436,128,980.40

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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.