Home / 684,709,278.50-944,898,804.42-391,360,145.06

Finding the Fourth Proportional to 684,709,278.50, 944,898,804.42 and 391,360,145.06

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Solution

The fourth proportional to 684,709,278.50, 944,898,804.42 and 391,360,145.06 is: 540,077,000.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,709,278.50 : 944,898,804.42 = 391,360,145.06 : x
  2. Step 2: Convert to fraction form
    684,709,278.50/944,898,804.42 = 391,360,145.06/x
  3. Step 3: Cross multiply
    684,709,278.50x = 944,898,804.42 × 391,360,145.06
  4. Step 4: Simplify right side
    684,709,278.50x = 369,795,733,164,831,744
  5. Step 5: Solve for x
    x = 369,795,733,164,831,744/684,709,278.50
  6. Step 6: Final answer
    x = 540,077,000.23

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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.