Home / 670,130,400.60-1,005,290,079.30-210,020,592.60

Finding the Fourth Proportional to 670,130,400.60, 1,005,290,079.30 and 210,020,592.60

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Solution

The fourth proportional to 670,130,400.60, 1,005,290,079.30 and 210,020,592.60 is: 315,060,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,130,400.60 : 1,005,290,079.30 = 210,020,592.60 : x
  2. Step 2: Convert to fraction form
    670,130,400.60/1,005,290,079.30 = 210,020,592.60/x
  3. Step 3: Cross multiply
    670,130,400.60x = 1,005,290,079.30 × 210,020,592.60
  4. Step 4: Simplify right side
    670,130,400.60x = 211,131,618,189,486,976
  5. Step 5: Solve for x
    x = 211,131,618,189,486,976/670,130,400.60
  6. Step 6: Final answer
    x = 315,060,498.67

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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.