Home / 559,872,055.20-839,808,082.80-287,270,378.40

Finding the Fourth Proportional to 559,872,055.20, 839,808,082.80 and 287,270,378.40

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Solution

The fourth proportional to 559,872,055.20, 839,808,082.80 and 287,270,378.40 is: 430,905,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,055.20 : 839,808,082.80 = 287,270,378.40 : x
  2. Step 2: Convert to fraction form
    559,872,055.20/839,808,082.80 = 287,270,378.40/x
  3. Step 3: Cross multiply
    559,872,055.20x = 839,808,082.80 × 287,270,378.40
  4. Step 4: Simplify right side
    559,872,055.20x = 241,251,985,729,334,496
  5. Step 5: Solve for x
    x = 241,251,985,729,334,496/559,872,055.20
  6. Step 6: Final answer
    x = 430,905,567.60

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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.