Home / 319,870,681.39-479,823,970.07-89,821,829.71

Finding the Fourth Proportional to 319,870,681.39, 479,823,970.07 and 89,821,829.71

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Solution

The fourth proportional to 319,870,681.39, 479,823,970.07 and 89,821,829.71 is: 134,737,784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,870,681.39 : 479,823,970.07 = 89,821,829.71 : x
  2. Step 2: Convert to fraction form
    319,870,681.39/479,823,970.07 = 89,821,829.71/x
  3. Step 3: Cross multiply
    319,870,681.39x = 479,823,970.07 × 89,821,829.71
  4. Step 4: Simplify right side
    319,870,681.39x = 43,098,666,930,403,672
  5. Step 5: Solve for x
    x = 43,098,666,930,403,672/319,870,681.39
  6. Step 6: Final answer
    x = 134,737,784.48

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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.