Home / 219,378,879,357.93-302,745,307,827.33-121,722,288,527.69

Finding the Fourth Proportional to 219,378,879,357.93, 302,745,307,827.33 and 121,722,288,527.69

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Solution

The fourth proportional to 219,378,879,357.93, 302,745,307,827.33 and 121,722,288,527.69 is: 167,978,119,943.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,378,879,357.93 : 302,745,307,827.33 = 121,722,288,527.69 : x
  2. Step 2: Convert to fraction form
    219,378,879,357.93/302,745,307,827.33 = 121,722,288,527.69/x
  3. Step 3: Cross multiply
    219,378,879,357.93x = 302,745,307,827.33 × 121,722,288,527.69
  4. Step 4: Simplify right side
    219,378,879,357.93x = 36,850,851,709,762,590,998,528
  5. Step 5: Solve for x
    x = 36,850,851,709,762,590,998,528/219,378,879,357.93
  6. Step 6: Final answer
    x = 167,978,119,943.07

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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.