Home / 66,108,935.20-99,163,402.80-65,731,021.60

Finding the Fourth Proportional to 66,108,935.20, 99,163,402.80 and 65,731,021.60

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Solution

The fourth proportional to 66,108,935.20, 99,163,402.80 and 65,731,021.60 is: 98,596,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,108,935.20 : 99,163,402.80 = 65,731,021.60 : x
  2. Step 2: Convert to fraction form
    66,108,935.20/99,163,402.80 = 65,731,021.60/x
  3. Step 3: Cross multiply
    66,108,935.20x = 99,163,402.80 × 65,731,021.60
  4. Step 4: Simplify right side
    66,108,935.20x = 6,518,111,771,376,300
  5. Step 5: Solve for x
    x = 6,518,111,771,376,300/66,108,935.20
  6. Step 6: Final answer
    x = 98,596,532.40

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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.