Home / 560,360,890.80-839,407,595.40-388,032,289.20

Finding the Fourth Proportional to 560,360,890.80, 839,407,595.40 and 388,032,289.20

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Solution

The fourth proportional to 560,360,890.80, 839,407,595.40 and 388,032,289.20 is: 581,263,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,360,890.80 : 839,407,595.40 = 388,032,289.20 : x
  2. Step 2: Convert to fraction form
    560,360,890.80/839,407,595.40 = 388,032,289.20/x
  3. Step 3: Cross multiply
    560,360,890.80x = 839,407,595.40 × 388,032,289.20
  4. Step 4: Simplify right side
    560,360,890.80x = 325,717,250,814,929,344
  5. Step 5: Solve for x
    x = 325,717,250,814,929,344/560,360,890.80
  6. Step 6: Final answer
    x = 581,263,353.96

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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.