Home / 1,359,860,783.40-2,039,791,175.10-439,830,124.20

Finding the Fourth Proportional to 1,359,860,783.40, 2,039,791,175.10 and 439,830,124.20

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Solution

The fourth proportional to 1,359,860,783.40, 2,039,791,175.10 and 439,830,124.20 is: 659,745,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,860,783.40 : 2,039,791,175.10 = 439,830,124.20 : x
  2. Step 2: Convert to fraction form
    1,359,860,783.40/2,039,791,175.10 = 439,830,124.20/x
  3. Step 3: Cross multiply
    1,359,860,783.40x = 2,039,791,175.10 × 439,830,124.20
  4. Step 4: Simplify right side
    1,359,860,783.40x = 897,161,605,886,296,832
  5. Step 5: Solve for x
    x = 897,161,605,886,296,832/1,359,860,783.40
  6. Step 6: Final answer
    x = 659,745,186.30

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Double scale
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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.