Home / 917,970,123.02-1,266,803,059.73-521,514,867.15

Finding the Fourth Proportional to 917,970,123.02, 1,266,803,059.73 and 521,514,867.15

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Solution

The fourth proportional to 917,970,123.02, 1,266,803,059.73 and 521,514,867.15 is: 719,692,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,970,123.02 : 1,266,803,059.73 = 521,514,867.15 : x
  2. Step 2: Convert to fraction form
    917,970,123.02/1,266,803,059.73 = 521,514,867.15/x
  3. Step 3: Cross multiply
    917,970,123.02x = 1,266,803,059.73 × 521,514,867.15
  4. Step 4: Simplify right side
    917,970,123.02x = 660,656,629,397,696,768
  5. Step 5: Solve for x
    x = 660,656,629,397,696,768/917,970,123.02
  6. Step 6: Final answer
    x = 719,692,953.87

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Double scale
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1.5x scale

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.