Home / 628,937,790.18-867,972,981.90-346,679,594.46

Finding the Fourth Proportional to 628,937,790.18, 867,972,981.90 and 346,679,594.46

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Solution

The fourth proportional to 628,937,790.18, 867,972,981.90 and 346,679,594.46 is: 478,439,244.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,937,790.18 : 867,972,981.90 = 346,679,594.46 : x
  2. Step 2: Convert to fraction form
    628,937,790.18/867,972,981.90 = 346,679,594.46/x
  3. Step 3: Cross multiply
    628,937,790.18x = 867,972,981.90 × 346,679,594.46
  4. Step 4: Simplify right side
    628,937,790.18x = 300,908,521,367,328,896
  5. Step 5: Solve for x
    x = 300,908,521,367,328,896/628,937,790.18
  6. Step 6: Final answer
    x = 478,439,244.81

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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.