Home / 108,889,736.80-163,145,648.40-70,531,506.40

Finding the Fourth Proportional to 108,889,736.80, 163,145,648.40 and 70,531,506.40

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Solution

The fourth proportional to 108,889,736.80, 163,145,648.40 and 70,531,506.40 is: 105,674,865.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,889,736.80 : 163,145,648.40 = 70,531,506.40 : x
  2. Step 2: Convert to fraction form
    108,889,736.80/163,145,648.40 = 70,531,506.40/x
  3. Step 3: Cross multiply
    108,889,736.80x = 163,145,648.40 × 70,531,506.40
  4. Step 4: Simplify right side
    108,889,736.80x = 11,506,908,344,256,752
  5. Step 5: Solve for x
    x = 11,506,908,344,256,752/108,889,736.80
  6. Step 6: Final answer
    x = 105,674,865.99

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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.