Home / 684,709,256.48-944,898,773.92-391,360,123.04

Finding the Fourth Proportional to 684,709,256.48, 944,898,773.92 and 391,360,123.04

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Solution

The fourth proportional to 684,709,256.48, 944,898,773.92 and 391,360,123.04 is: 540,076,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,709,256.48 : 944,898,773.92 = 391,360,123.04 : x
  2. Step 2: Convert to fraction form
    684,709,256.48/944,898,773.92 = 391,360,123.04/x
  3. Step 3: Cross multiply
    684,709,256.48x = 944,898,773.92 × 391,360,123.04
  4. Step 4: Simplify right side
    684,709,256.48x = 369,795,700,421,676,352
  5. Step 5: Solve for x
    x = 369,795,700,421,676,352/684,709,256.48
  6. Step 6: Final answer
    x = 540,076,969.78

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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.