Home / 1,437,485,138.52-1,983,729,475.80-777,435,416.52

Finding the Fourth Proportional to 1,437,485,138.52, 1,983,729,475.80 and 777,435,416.52

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Solution

The fourth proportional to 1,437,485,138.52, 1,983,729,475.80 and 777,435,416.52 is: 1,072,860,866.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,485,138.52 : 1,983,729,475.80 = 777,435,416.52 : x
  2. Step 2: Convert to fraction form
    1,437,485,138.52/1,983,729,475.80 = 777,435,416.52/x
  3. Step 3: Cross multiply
    1,437,485,138.52x = 1,983,729,475.80 × 777,435,416.52
  4. Step 4: Simplify right side
    1,437,485,138.52x = 1,542,221,551,281,574,144
  5. Step 5: Solve for x
    x = 1,542,221,551,281,574,144/1,437,485,138.52
  6. Step 6: Final answer
    x = 1,072,860,866.49

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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.