Home / 145,720,008.10-218,831,954.55-77,695,560.10

Finding the Fourth Proportional to 145,720,008.10, 218,831,954.55 and 77,695,560.10

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Solution

The fourth proportional to 145,720,008.10, 218,831,954.55 and 77,695,560.10 is: 116,677,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,720,008.10 : 218,831,954.55 = 77,695,560.10 : x
  2. Step 2: Convert to fraction form
    145,720,008.10/218,831,954.55 = 77,695,560.10/x
  3. Step 3: Cross multiply
    145,720,008.10x = 218,831,954.55 × 77,695,560.10
  4. Step 4: Simplify right side
    145,720,008.10x = 17,002,271,276,539,994
  5. Step 5: Solve for x
    x = 17,002,271,276,539,994/145,720,008.10
  6. Step 6: Final answer
    x = 116,677,671.78

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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.