Home / 66,528,081.30-99,792,121.95-21,089,802.90

Finding the Fourth Proportional to 66,528,081.30, 99,792,121.95 and 21,089,802.90

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Solution

The fourth proportional to 66,528,081.30, 99,792,121.95 and 21,089,802.90 is: 31,634,704.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,081.30 : 99,792,121.95 = 21,089,802.90 : x
  2. Step 2: Convert to fraction form
    66,528,081.30/99,792,121.95 = 21,089,802.90/x
  3. Step 3: Cross multiply
    66,528,081.30x = 99,792,121.95 × 21,089,802.90
  4. Step 4: Simplify right side
    66,528,081.30x = 2,104,596,182,898,263.50
  5. Step 5: Solve for x
    x = 2,104,596,182,898,263.50/66,528,081.30
  6. Step 6: Final answer
    x = 31,634,704.35

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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.