Home / 1,000,869,289.54-1,381,199,589.65-554,831,522.53

Finding the Fourth Proportional to 1,000,869,289.54, 1,381,199,589.65 and 554,831,522.53

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Solution

The fourth proportional to 1,000,869,289.54, 1,381,199,589.65 and 554,831,522.53 is: 765,667,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,869,289.54 : 1,381,199,589.65 = 554,831,522.53 : x
  2. Step 2: Convert to fraction form
    1,000,869,289.54/1,381,199,589.65 = 554,831,522.53/x
  3. Step 3: Cross multiply
    1,000,869,289.54x = 1,381,199,589.65 × 554,831,522.53
  4. Step 4: Simplify right side
    1,000,869,289.54x = 766,333,071,243,320,704
  5. Step 5: Solve for x
    x = 766,333,071,243,320,704/1,000,869,289.54
  6. Step 6: Final answer
    x = 765,667,484.51

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Double scale
Find fourth proportional to 1,000,869,290.54, 1,381,199,591.03 and 554,831,523.53
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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.