Home / 885,188,290.56-1,221,666,957.78-503,803,053.74

Finding the Fourth Proportional to 885,188,290.56, 1,221,666,957.78 and 503,803,053.74

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Solution

The fourth proportional to 885,188,290.56, 1,221,666,957.78 and 503,803,053.74 is: 695,309,179.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,188,290.56 : 1,221,666,957.78 = 503,803,053.74 : x
  2. Step 2: Convert to fraction form
    885,188,290.56/1,221,666,957.78 = 503,803,053.74/x
  3. Step 3: Cross multiply
    885,188,290.56x = 1,221,666,957.78 × 503,803,053.74
  4. Step 4: Simplify right side
    885,188,290.56x = 615,479,543,982,819,712
  5. Step 5: Solve for x
    x = 615,479,543,982,819,712/885,188,290.56
  6. Step 6: Final answer
    x = 695,309,179.47

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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.