Home / 472,886,939.06-709,398,105.81-145,389,953.45

Finding the Fourth Proportional to 472,886,939.06, 709,398,105.81 and 145,389,953.45

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Solution

The fourth proportional to 472,886,939.06, 709,398,105.81 and 145,389,953.45 is: 218,105,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,886,939.06 : 709,398,105.81 = 145,389,953.45 : x
  2. Step 2: Convert to fraction form
    472,886,939.06/709,398,105.81 = 145,389,953.45/x
  3. Step 3: Cross multiply
    472,886,939.06x = 709,398,105.81 × 145,389,953.45
  4. Step 4: Simplify right side
    472,886,939.06x = 103,139,357,577,687,072
  5. Step 5: Solve for x
    x = 103,139,357,577,687,072/472,886,939.06
  6. Step 6: Final answer
    x = 218,105,743.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.