Home / 684,709,274.56-944,898,798.88-391,360,141.12

Finding the Fourth Proportional to 684,709,274.56, 944,898,798.88 and 391,360,141.12

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Solution

The fourth proportional to 684,709,274.56, 944,898,798.88 and 391,360,141.12 is: 540,076,994.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,709,274.56 : 944,898,798.88 = 391,360,141.12 : x
  2. Step 2: Convert to fraction form
    684,709,274.56/944,898,798.88 = 391,360,141.12/x
  3. Step 3: Cross multiply
    684,709,274.56x = 944,898,798.88 × 391,360,141.12
  4. Step 4: Simplify right side
    684,709,274.56x = 369,795,727,273,795,328
  5. Step 5: Solve for x
    x = 369,795,727,273,795,328/684,709,274.56
  6. Step 6: Final answer
    x = 540,076,994.74

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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.