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Finding the Fourth Proportional to 163,538,368.02, 245,416,640.90 and 84,827,417.90

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Solution

The fourth proportional to 163,538,368.02, 245,416,640.90 and 84,827,417.90 is: 127,297,711.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,538,368.02 : 245,416,640.90 = 84,827,417.90 : x
  2. Step 2: Convert to fraction form
    163,538,368.02/245,416,640.90 = 84,827,417.90/x
  3. Step 3: Cross multiply
    163,538,368.02x = 245,416,640.90 × 84,827,417.90
  4. Step 4: Simplify right side
    163,538,368.02x = 20,818,059,955,587,312
  5. Step 5: Solve for x
    x = 20,818,059,955,587,312/163,538,368.02
  6. Step 6: Final answer
    x = 127,297,711.28

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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.