Home / 39,966,703,861.68-55,154,116,058.40-21,899,349,357.12

Finding the Fourth Proportional to 39,966,703,861.68, 55,154,116,058.40 and 21,899,349,357.12

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Solution

The fourth proportional to 39,966,703,861.68, 55,154,116,058.40 and 21,899,349,357.12 is: 30,221,137,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,966,703,861.68 : 55,154,116,058.40 = 21,899,349,357.12 : x
  2. Step 2: Convert to fraction form
    39,966,703,861.68/55,154,116,058.40 = 21,899,349,357.12/x
  3. Step 3: Cross multiply
    39,966,703,861.68x = 55,154,116,058.40 × 21,899,349,357.12
  4. Step 4: Simplify right side
    39,966,703,861.68x = 1,207,839,256,046,043,922,432
  5. Step 5: Solve for x
    x = 1,207,839,256,046,043,922,432/39,966,703,861.68
  6. Step 6: Final answer
    x = 30,221,137,580.58

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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.