Home / 72,171,383.40-108,257,075.10-70,736,492.70

Finding the Fourth Proportional to 72,171,383.40, 108,257,075.10 and 70,736,492.70

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Solution

The fourth proportional to 72,171,383.40, 108,257,075.10 and 70,736,492.70 is: 106,104,739.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,383.40 : 108,257,075.10 = 70,736,492.70 : x
  2. Step 2: Convert to fraction form
    72,171,383.40/108,257,075.10 = 70,736,492.70/x
  3. Step 3: Cross multiply
    72,171,383.40x = 108,257,075.10 × 70,736,492.70
  4. Step 4: Simplify right side
    72,171,383.40x = 7,657,725,802,534,502
  5. Step 5: Solve for x
    x = 7,657,725,802,534,502/72,171,383.40
  6. Step 6: Final answer
    x = 106,104,739.05

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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.