Home / 1,262,487,127.20-1,893,730,690.80-389,010,699.60

Finding the Fourth Proportional to 1,262,487,127.20, 1,893,730,690.80 and 389,010,699.60

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Solution

The fourth proportional to 1,262,487,127.20, 1,893,730,690.80 and 389,010,699.60 is: 583,516,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,487,127.20 : 1,893,730,690.80 = 389,010,699.60 : x
  2. Step 2: Convert to fraction form
    1,262,487,127.20/1,893,730,690.80 = 389,010,699.60/x
  3. Step 3: Cross multiply
    1,262,487,127.20x = 1,893,730,690.80 × 389,010,699.60
  4. Step 4: Simplify right side
    1,262,487,127.20x = 736,681,500,882,099,328
  5. Step 5: Solve for x
    x = 736,681,500,882,099,328/1,262,487,127.20
  6. Step 6: Final answer
    x = 583,516,049.40

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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.