Home / 207,962,271.40-286,996,901.22-115,142,776.36

Finding the Fourth Proportional to 207,962,271.40, 286,996,901.22 and 115,142,776.36

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Solution

The fourth proportional to 207,962,271.40, 286,996,901.22 and 115,142,776.36 is: 158,901,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,962,271.40 : 286,996,901.22 = 115,142,776.36 : x
  2. Step 2: Convert to fraction form
    207,962,271.40/286,996,901.22 = 115,142,776.36/x
  3. Step 3: Cross multiply
    207,962,271.40x = 286,996,901.22 × 115,142,776.36
  4. Step 4: Simplify right side
    207,962,271.40x = 33,045,620,013,187,476
  5. Step 5: Solve for x
    x = 33,045,620,013,187,476/207,962,271.40
  6. Step 6: Final answer
    x = 158,901,995.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.