Home / 642,323,349.42-886,450,081.35-363,867,161.10

Finding the Fourth Proportional to 642,323,349.42, 886,450,081.35 and 363,867,161.10

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Solution

The fourth proportional to 642,323,349.42, 886,450,081.35 and 363,867,161.10 is: 502,161,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,323,349.42 : 886,450,081.35 = 363,867,161.10 : x
  2. Step 2: Convert to fraction form
    642,323,349.42/886,450,081.35 = 363,867,161.10/x
  3. Step 3: Cross multiply
    642,323,349.42x = 886,450,081.35 × 363,867,161.10
  4. Step 4: Simplify right side
    642,323,349.42x = 322,550,074,557,688,576
  5. Step 5: Solve for x
    x = 322,550,074,557,688,576/642,323,349.42
  6. Step 6: Final answer
    x = 502,161,527.91

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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.