Home / 256,260,857,726.66-384,122,208,471.52-86,221,417,710.37

Finding the Fourth Proportional to 256,260,857,726.66, 384,122,208,471.52 and 86,221,417,710.37

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Solution

The fourth proportional to 256,260,857,726.66, 384,122,208,471.52 and 86,221,417,710.37 is: 129,241,592,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,260,857,726.66 : 384,122,208,471.52 = 86,221,417,710.37 : x
  2. Step 2: Convert to fraction form
    256,260,857,726.66/384,122,208,471.52 = 86,221,417,710.37/x
  3. Step 3: Cross multiply
    256,260,857,726.66x = 384,122,208,471.52 × 86,221,417,710.37
  4. Step 4: Simplify right side
    256,260,857,726.66x = 33,119,561,388,453,521,260,544
  5. Step 5: Solve for x
    x = 33,119,561,388,453,521,260,544/256,260,857,726.66
  6. Step 6: Final answer
    x = 129,241,592,657.82

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1.5x scale

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.