Home / 486,678,135.71-730,017,212.80-118,210,605.27

Finding the Fourth Proportional to 486,678,135.71, 730,017,212.80 and 118,210,605.27

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Solution

The fourth proportional to 486,678,135.71, 730,017,212.80 and 118,210,605.27 is: 177,315,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,678,135.71 : 730,017,212.80 = 118,210,605.27 : x
  2. Step 2: Convert to fraction form
    486,678,135.71/730,017,212.80 = 118,210,605.27/x
  3. Step 3: Cross multiply
    486,678,135.71x = 730,017,212.80 × 118,210,605.27
  4. Step 4: Simplify right side
    486,678,135.71x = 86,295,776,583,894,688
  5. Step 5: Solve for x
    x = 86,295,776,583,894,688/486,678,135.71
  6. Step 6: Final answer
    x = 177,315,910.15

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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.