Home / 211,884,376.45-317,655,051.88-66,242,970.40

Finding the Fourth Proportional to 211,884,376.45, 317,655,051.88 and 66,242,970.40

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Solution

The fourth proportional to 211,884,376.45, 317,655,051.88 and 66,242,970.40 is: 99,310,834.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,884,376.45 : 317,655,051.88 = 66,242,970.40 : x
  2. Step 2: Convert to fraction form
    211,884,376.45/317,655,051.88 = 66,242,970.40/x
  3. Step 3: Cross multiply
    211,884,376.45x = 317,655,051.88 × 66,242,970.40
  4. Step 4: Simplify right side
    211,884,376.45x = 21,042,414,199,097,304
  5. Step 5: Solve for x
    x = 21,042,414,199,097,304/211,884,376.45
  6. Step 6: Final answer
    x = 99,310,834.29

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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.