Home / 285,311,477,703.06-393,730,092,511.68-156,855,111,843.06

Finding the Fourth Proportional to 285,311,477,703.06, 393,730,092,511.68 and 156,855,111,843.06

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Solution

The fourth proportional to 285,311,477,703.06, 393,730,092,511.68 and 156,855,111,843.06 is: 216,460,193,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,311,477,703.06 : 393,730,092,511.68 = 156,855,111,843.06 : x
  2. Step 2: Convert to fraction form
    285,311,477,703.06/393,730,092,511.68 = 156,855,111,843.06/x
  3. Step 3: Cross multiply
    285,311,477,703.06x = 393,730,092,511.68 × 156,855,111,843.06
  4. Step 4: Simplify right side
    285,311,477,703.06x = 61,758,577,696,897,926,955,008
  5. Step 5: Solve for x
    x = 61,758,577,696,897,926,955,008/285,311,477,703.06
  6. Step 6: Final answer
    x = 216,460,193,589.46

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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.