Home / 158,402,586.12-218,591,667.12-87,837,806.40

Finding the Fourth Proportional to 158,402,586.12, 218,591,667.12 and 87,837,806.40

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Solution

The fourth proportional to 158,402,586.12, 218,591,667.12 and 87,837,806.40 is: 121,214,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,402,586.12 : 218,591,667.12 = 87,837,806.40 : x
  2. Step 2: Convert to fraction form
    158,402,586.12/218,591,667.12 = 87,837,806.40/x
  3. Step 3: Cross multiply
    158,402,586.12x = 218,591,667.12 × 87,837,806.40
  4. Step 4: Simplify right side
    158,402,586.12x = 19,200,612,537,139,808
  5. Step 5: Solve for x
    x = 19,200,612,537,139,808/158,402,586.12
  6. Step 6: Final answer
    x = 121,214,009.24

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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.