Home / 42,900,115,035.82-59,210,355,291.43-28,406,646,542.43

Finding the Fourth Proportional to 42,900,115,035.82, 59,210,355,291.43 and 28,406,646,542.43

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Solution

The fourth proportional to 42,900,115,035.82, 59,210,355,291.43 and 28,406,646,542.43 is: 39,206,599,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,900,115,035.82 : 59,210,355,291.43 = 28,406,646,542.43 : x
  2. Step 2: Convert to fraction form
    42,900,115,035.82/59,210,355,291.43 = 28,406,646,542.43/x
  3. Step 3: Cross multiply
    42,900,115,035.82x = 59,210,355,291.43 × 28,406,646,542.43
  4. Step 4: Simplify right side
    42,900,115,035.82x = 1,681,967,634,415,465,529,344
  5. Step 5: Solve for x
    x = 1,681,967,634,415,465,529,344/42,900,115,035.82
  6. Step 6: Final answer
    x = 39,206,599,632.91

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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.