Home / 152,554,118.65-210,569,487.39-99,638,915.67

Finding the Fourth Proportional to 152,554,118.65, 210,569,487.39 and 99,638,915.67

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Solution

The fourth proportional to 152,554,118.65, 210,569,487.39 and 99,638,915.67 is: 137,530,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,554,118.65 : 210,569,487.39 = 99,638,915.67 : x
  2. Step 2: Convert to fraction form
    152,554,118.65/210,569,487.39 = 99,638,915.67/x
  3. Step 3: Cross multiply
    152,554,118.65x = 210,569,487.39 × 99,638,915.67
  4. Step 4: Simplify right side
    152,554,118.65x = 20,980,915,396,727,336
  5. Step 5: Solve for x
    x = 20,980,915,396,727,336/152,554,118.65
  6. Step 6: Final answer
    x = 137,530,966.60

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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.