Home / 711,189,460.67-981,467,733.02-389,339,989.02

Finding the Fourth Proportional to 711,189,460.67, 981,467,733.02 and 389,339,989.02

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Solution

The fourth proportional to 711,189,460.67, 981,467,733.02 and 389,339,989.02 is: 537,303,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,189,460.67 : 981,467,733.02 = 389,339,989.02 : x
  2. Step 2: Convert to fraction form
    711,189,460.67/981,467,733.02 = 389,339,989.02/x
  3. Step 3: Cross multiply
    711,189,460.67x = 981,467,733.02 × 389,339,989.02
  4. Step 4: Simplify right side
    711,189,460.67x = 382,124,636,395,544,384
  5. Step 5: Solve for x
    x = 382,124,636,395,544,384/711,189,460.67
  6. Step 6: Final answer
    x = 537,303,570.33

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Double scale
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1.5x scale

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.