Home / 998,390,009.63-1,377,767,997.91-552,356,565.10

Finding the Fourth Proportional to 998,390,009.63, 1,377,767,997.91 and 552,356,565.10

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Solution

The fourth proportional to 998,390,009.63, 1,377,767,997.91 and 552,356,565.10 is: 762,246,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,390,009.63 : 1,377,767,997.91 = 552,356,565.10 : x
  2. Step 2: Convert to fraction form
    998,390,009.63/1,377,767,997.91 = 552,356,565.10/x
  3. Step 3: Cross multiply
    998,390,009.63x = 1,377,767,997.91 × 552,356,565.10
  4. Step 4: Simplify right side
    998,390,009.63x = 761,019,198,830,271,616
  5. Step 5: Solve for x
    x = 761,019,198,830,271,616/998,390,009.63
  6. Step 6: Final answer
    x = 762,246,408.21

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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.