Home / 1,240,306,507.37-1,860,362,132.97-540,782,135.21

Finding the Fourth Proportional to 1,240,306,507.37, 1,860,362,132.97 and 540,782,135.21

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Solution

The fourth proportional to 1,240,306,507.37, 1,860,362,132.97 and 540,782,135.21 is: 811,130,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,306,507.37 : 1,860,362,132.97 = 540,782,135.21 : x
  2. Step 2: Convert to fraction form
    1,240,306,507.37/1,860,362,132.97 = 540,782,135.21/x
  3. Step 3: Cross multiply
    1,240,306,507.37x = 1,860,362,132.97 × 540,782,135.21
  4. Step 4: Simplify right side
    1,240,306,507.37x = 1,006,050,606,538,052,352
  5. Step 5: Solve for x
    x = 1,006,050,606,538,052,352/1,240,306,507.37
  6. Step 6: Final answer
    x = 811,130,636.30

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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.