Home / 153,872,963.39-212,344,384.39-83,308,554.32

Finding the Fourth Proportional to 153,872,963.39, 212,344,384.39 and 83,308,554.32

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Solution

The fourth proportional to 153,872,963.39, 212,344,384.39 and 83,308,554.32 is: 114,965,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,872,963.39 : 212,344,384.39 = 83,308,554.32 : x
  2. Step 2: Convert to fraction form
    153,872,963.39/212,344,384.39 = 83,308,554.32/x
  3. Step 3: Cross multiply
    153,872,963.39x = 212,344,384.39 × 83,308,554.32
  4. Step 4: Simplify right side
    153,872,963.39x = 17,690,103,680,231,280
  5. Step 5: Solve for x
    x = 17,690,103,680,231,280/153,872,963.39
  6. Step 6: Final answer
    x = 114,965,639.77

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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.