Home / 609,168,521.51-840,648,045.71-330,702,885.35

Finding the Fourth Proportional to 609,168,521.51, 840,648,045.71 and 330,702,885.35

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Solution

The fourth proportional to 609,168,521.51, 840,648,045.71 and 330,702,885.35 is: 456,367,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,168,521.51 : 840,648,045.71 = 330,702,885.35 : x
  2. Step 2: Convert to fraction form
    609,168,521.51/840,648,045.71 = 330,702,885.35/x
  3. Step 3: Cross multiply
    609,168,521.51x = 840,648,045.71 × 330,702,885.35
  4. Step 4: Simplify right side
    609,168,521.51x = 278,004,734,280,135,712
  5. Step 5: Solve for x
    x = 278,004,734,280,135,712/609,168,521.51
  6. Step 6: Final answer
    x = 456,367,531.26

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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.