Home / 145,928,528,331.61-218,925,798,920.14-78,774,331,982.62

Finding the Fourth Proportional to 145,928,528,331.61, 218,925,798,920.14 and 78,774,331,982.62

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Solution

The fourth proportional to 145,928,528,331.61, 218,925,798,920.14 and 78,774,331,982.62 is: 118,179,315,318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,928,528,331.61 : 218,925,798,920.14 = 78,774,331,982.62 : x
  2. Step 2: Convert to fraction form
    145,928,528,331.61/218,925,798,920.14 = 78,774,331,982.62/x
  3. Step 3: Cross multiply
    145,928,528,331.61x = 218,925,798,920.14 × 78,774,331,982.62
  4. Step 4: Simplify right side
    145,928,528,331.61x = 17,245,733,563,696,295,182,336
  5. Step 5: Solve for x
    x = 17,245,733,563,696,295,182,336/145,928,528,331.61
  6. Step 6: Final answer
    x = 118,179,315,318.71

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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.