Home / 839,477,130.30-1,259,215,695.45-402,552,912.15

Finding the Fourth Proportional to 839,477,130.30, 1,259,215,695.45 and 402,552,912.15

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Solution

The fourth proportional to 839,477,130.30, 1,259,215,695.45 and 402,552,912.15 is: 603,829,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,477,130.30 : 1,259,215,695.45 = 402,552,912.15 : x
  2. Step 2: Convert to fraction form
    839,477,130.30/1,259,215,695.45 = 402,552,912.15/x
  3. Step 3: Cross multiply
    839,477,130.30x = 1,259,215,695.45 × 402,552,912.15
  4. Step 4: Simplify right side
    839,477,130.30x = 506,900,945,228,385,024
  5. Step 5: Solve for x
    x = 506,900,945,228,385,024/839,477,130.30
  6. Step 6: Final answer
    x = 603,829,368.23

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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.