Home / 153,840,935.87-212,300,394.05-84,226,298.30

Finding the Fourth Proportional to 153,840,935.87, 212,300,394.05 and 84,226,298.30

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Solution

The fourth proportional to 153,840,935.87, 212,300,394.05 and 84,226,298.30 is: 116,232,238.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,840,935.87 : 212,300,394.05 = 84,226,298.30 : x
  2. Step 2: Convert to fraction form
    153,840,935.87/212,300,394.05 = 84,226,298.30/x
  3. Step 3: Cross multiply
    153,840,935.87x = 212,300,394.05 × 84,226,298.30
  4. Step 4: Simplify right side
    153,840,935.87x = 17,881,276,316,980,210
  5. Step 5: Solve for x
    x = 17,881,276,316,980,210/153,840,935.87
  6. Step 6: Final answer
    x = 116,232,238.29

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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.