Home / 658,535,303.88-908,519,491.62-380,023,011.72

Finding the Fourth Proportional to 658,535,303.88, 908,519,491.62 and 380,023,011.72

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Solution

The fourth proportional to 658,535,303.88, 908,519,491.62 and 380,023,011.72 is: 524,282,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,535,303.88 : 908,519,491.62 = 380,023,011.72 : x
  2. Step 2: Convert to fraction form
    658,535,303.88/908,519,491.62 = 380,023,011.72/x
  3. Step 3: Cross multiply
    658,535,303.88x = 908,519,491.62 × 380,023,011.72
  4. Step 4: Simplify right side
    658,535,303.88x = 345,258,313,411,755,712
  5. Step 5: Solve for x
    x = 345,258,313,411,755,712/658,535,303.88
  6. Step 6: Final answer
    x = 524,282,162.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.