Home / 514,409,238.40-709,945,606.60-305,566,206.16

Finding the Fourth Proportional to 514,409,238.40, 709,945,606.60 and 305,566,206.16

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Solution

The fourth proportional to 514,409,238.40, 709,945,606.60 and 305,566,206.16 is: 421,717,514.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,409,238.40 : 709,945,606.60 = 305,566,206.16 : x
  2. Step 2: Convert to fraction form
    514,409,238.40/709,945,606.60 = 305,566,206.16/x
  3. Step 3: Cross multiply
    514,409,238.40x = 709,945,606.60 × 305,566,206.16
  4. Step 4: Simplify right side
    514,409,238.40x = 216,935,385,588,721,888
  5. Step 5: Solve for x
    x = 216,935,385,588,721,888/514,409,238.40
  6. Step 6: Final answer
    x = 421,717,514.76

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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.