Home / 1,080,300,567.12-1,490,816,295.36-585,263,275.62

Finding the Fourth Proportional to 1,080,300,567.12, 1,490,816,295.36 and 585,263,275.62

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Solution

The fourth proportional to 1,080,300,567.12, 1,490,816,295.36 and 585,263,275.62 is: 807,664,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,300,567.12 : 1,490,816,295.36 = 585,263,275.62 : x
  2. Step 2: Convert to fraction form
    1,080,300,567.12/1,490,816,295.36 = 585,263,275.62/x
  3. Step 3: Cross multiply
    1,080,300,567.12x = 1,490,816,295.36 × 585,263,275.62
  4. Step 4: Simplify right side
    1,080,300,567.12x = 872,520,028,370,066,944
  5. Step 5: Solve for x
    x = 872,520,028,370,066,944/1,080,300,567.12
  6. Step 6: Final answer
    x = 807,664,139.89

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Double scale
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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.