Home / 155,966,965.36-215,248,855.08-86,352,347.36

Finding the Fourth Proportional to 155,966,965.36, 215,248,855.08 and 86,352,347.36

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Solution

The fourth proportional to 155,966,965.36, 215,248,855.08 and 86,352,347.36 is: 119,174,235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,966,965.36 : 215,248,855.08 = 86,352,347.36 : x
  2. Step 2: Convert to fraction form
    155,966,965.36/215,248,855.08 = 86,352,347.36/x
  3. Step 3: Cross multiply
    155,966,965.36x = 215,248,855.08 × 86,352,347.36
  4. Step 4: Simplify right side
    155,966,965.36x = 18,587,243,902,710,460
  5. Step 5: Solve for x
    x = 18,587,243,902,710,460/155,966,965.36
  6. Step 6: Final answer
    x = 119,174,235.77

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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.