Home / 207,962,282.40-286,996,916.40-115,142,787.36

Finding the Fourth Proportional to 207,962,282.40, 286,996,916.40 and 115,142,787.36

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Solution

The fourth proportional to 207,962,282.40, 286,996,916.40 and 115,142,787.36 is: 158,902,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,962,282.40 : 286,996,916.40 = 115,142,787.36 : x
  2. Step 2: Convert to fraction form
    207,962,282.40/286,996,916.40 = 115,142,787.36/x
  3. Step 3: Cross multiply
    207,962,282.40x = 286,996,916.40 × 115,142,787.36
  4. Step 4: Simplify right side
    207,962,282.40x = 33,045,624,918,020,892
  5. Step 5: Solve for x
    x = 33,045,624,918,020,892/207,962,282.40
  6. Step 6: Final answer
    x = 158,902,011.16

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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.