Home / 890,624,390.80-1,335,936,586.20-526,931,539.60

Finding the Fourth Proportional to 890,624,390.80, 1,335,936,586.20 and 526,931,539.60

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Solution

The fourth proportional to 890,624,390.80, 1,335,936,586.20 and 526,931,539.60 is: 790,397,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,624,390.80 : 1,335,936,586.20 = 526,931,539.60 : x
  2. Step 2: Convert to fraction form
    890,624,390.80/1,335,936,586.20 = 526,931,539.60/x
  3. Step 3: Cross multiply
    890,624,390.80x = 1,335,936,586.20 × 526,931,539.60
  4. Step 4: Simplify right side
    890,624,390.80x = 703,947,122,174,334,208
  5. Step 5: Solve for x
    x = 703,947,122,174,334,208/890,624,390.80
  6. Step 6: Final answer
    x = 790,397,309.40

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1.5x scale

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.