Home / 448,347,427.40-672,497,226.12-120,817,681.76

Finding the Fourth Proportional to 448,347,427.40, 672,497,226.12 and 120,817,681.76

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Solution

The fourth proportional to 448,347,427.40, 672,497,226.12 and 120,817,681.76 is: 181,220,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,347,427.40 : 672,497,226.12 = 120,817,681.76 : x
  2. Step 2: Convert to fraction form
    448,347,427.40/672,497,226.12 = 120,817,681.76/x
  3. Step 3: Cross multiply
    448,347,427.40x = 672,497,226.12 × 120,817,681.76
  4. Step 4: Simplify right side
    448,347,427.40x = 81,249,555,849,848,928
  5. Step 5: Solve for x
    x = 81,249,555,849,848,928/448,347,427.40
  6. Step 6: Final answer
    x = 181,220,078.19

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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.