Home / 448,347,466.90-672,497,285.37-120,817,721.40

Finding the Fourth Proportional to 448,347,466.90, 672,497,285.37 and 120,817,721.40

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Solution

The fourth proportional to 448,347,466.90, 672,497,285.37 and 120,817,721.40 is: 181,220,137.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,347,466.90 : 672,497,285.37 = 120,817,721.40 : x
  2. Step 2: Convert to fraction form
    448,347,466.90/672,497,285.37 = 120,817,721.40/x
  3. Step 3: Cross multiply
    448,347,466.90x = 672,497,285.37 × 120,817,721.40
  4. Step 4: Simplify right side
    448,347,466.90x = 81,249,589,666,088,960
  5. Step 5: Solve for x
    x = 81,249,589,666,088,960/448,347,466.90
  6. Step 6: Final answer
    x = 181,220,137.65

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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.