Home / 620,783,973.60-930,840,037.20-257,315,071.20

Finding the Fourth Proportional to 620,783,973.60, 930,840,037.20 and 257,315,071.20

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Solution

The fourth proportional to 620,783,973.60, 930,840,037.20 and 257,315,071.20 is: 385,833,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,783,973.60 : 930,840,037.20 = 257,315,071.20 : x
  2. Step 2: Convert to fraction form
    620,783,973.60/930,840,037.20 = 257,315,071.20/x
  3. Step 3: Cross multiply
    620,783,973.60x = 930,840,037.20 × 257,315,071.20
  4. Step 4: Simplify right side
    620,783,973.60x = 239,519,170,447,928,640
  5. Step 5: Solve for x
    x = 239,519,170,447,928,640/620,783,973.60
  6. Step 6: Final answer
    x = 385,833,366.57

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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.