Home / 155,051,054.55-213,960,814.34-85,432,539.51

Finding the Fourth Proportional to 155,051,054.55, 213,960,814.34 and 85,432,539.51

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Solution

The fourth proportional to 155,051,054.55, 213,960,814.34 and 85,432,539.51 is: 117,891,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,051,054.55 : 213,960,814.34 = 85,432,539.51 : x
  2. Step 2: Convert to fraction form
    155,051,054.55/213,960,814.34 = 85,432,539.51/x
  3. Step 3: Cross multiply
    155,051,054.55x = 213,960,814.34 × 85,432,539.51
  4. Step 4: Simplify right side
    155,051,054.55x = 18,279,215,724,266,664
  5. Step 5: Solve for x
    x = 18,279,215,724,266,664/155,051,054.55
  6. Step 6: Final answer
    x = 117,891,592.40

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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.