Home / 520,624,332.16-780,525,599.60-258,127,894.88

Finding the Fourth Proportional to 520,624,332.16, 780,525,599.60 and 258,127,894.88

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Solution

The fourth proportional to 520,624,332.16, 780,525,599.60 and 258,127,894.88 is: 386,988,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,624,332.16 : 780,525,599.60 = 258,127,894.88 : x
  2. Step 2: Convert to fraction form
    520,624,332.16/780,525,599.60 = 258,127,894.88/x
  3. Step 3: Cross multiply
    520,624,332.16x = 780,525,599.60 × 258,127,894.88
  4. Step 4: Simplify right side
    520,624,332.16x = 201,475,429,924,697,760
  5. Step 5: Solve for x
    x = 201,475,429,924,697,760/520,624,332.16
  6. Step 6: Final answer
    x = 386,988,116.92

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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.