Home / 66,528,005.85-99,792,008.78-47,156,981.40

Finding the Fourth Proportional to 66,528,005.85, 99,792,008.78 and 47,156,981.40

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Solution

The fourth proportional to 66,528,005.85, 99,792,008.78 and 47,156,981.40 is: 70,735,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,005.85 : 99,792,008.78 = 47,156,981.40 : x
  2. Step 2: Convert to fraction form
    66,528,005.85/99,792,008.78 = 47,156,981.40/x
  3. Step 3: Cross multiply
    66,528,005.85x = 99,792,008.78 × 47,156,981.40
  4. Step 4: Simplify right side
    66,528,005.85x = 4,705,889,901,907,097
  5. Step 5: Solve for x
    x = 4,705,889,901,907,097/66,528,005.85
  6. Step 6: Final answer
    x = 70,735,472.10

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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.