Home / 711,389,952-981,718,133.76-385,807,104

Finding the Fourth Proportional to 711,389,952, 981,718,133.76 and 385,807,104

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Solution

The fourth proportional to 711,389,952, 981,718,133.76 and 385,807,104 is: 532,413,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,389,952 : 981,718,133.76 = 385,807,104 : x
  2. Step 2: Convert to fraction form
    711,389,952/981,718,133.76 = 385,807,104/x
  3. Step 3: Cross multiply
    711,389,952x = 981,718,133.76 × 385,807,104
  4. Step 4: Simplify right side
    711,389,952x = 378,753,830,130,230,208
  5. Step 5: Solve for x
    x = 378,753,830,130,230,208/711,389,952
  6. Step 6: Final answer
    x = 532,413,803.52

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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.