Home / 163,531,042.40-245,296,563.84-66,464,008.16

Finding the Fourth Proportional to 163,531,042.40, 245,296,563.84 and 66,464,008.16

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Solution

The fourth proportional to 163,531,042.40, 245,296,563.84 and 66,464,008.16 is: 99,696,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,531,042.40 : 245,296,563.84 = 66,464,008.16 : x
  2. Step 2: Convert to fraction form
    163,531,042.40/245,296,563.84 = 66,464,008.16/x
  3. Step 3: Cross multiply
    163,531,042.40x = 245,296,563.84 × 66,464,008.16
  4. Step 4: Simplify right side
    163,531,042.40x = 16,303,392,820,681,720
  5. Step 5: Solve for x
    x = 16,303,392,820,681,720/163,531,042.40
  6. Step 6: Final answer
    x = 99,696,012.34

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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.