Home / 684,709,262.50-944,898,782.34-391,360,129.06

Finding the Fourth Proportional to 684,709,262.50, 944,898,782.34 and 391,360,129.06

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Solution

The fourth proportional to 684,709,262.50, 944,898,782.34 and 391,360,129.06 is: 540,076,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,709,262.50 : 944,898,782.34 = 391,360,129.06 : x
  2. Step 2: Convert to fraction form
    684,709,262.50/944,898,782.34 = 391,360,129.06/x
  3. Step 3: Cross multiply
    684,709,262.50x = 944,898,782.34 × 391,360,129.06
  4. Step 4: Simplify right side
    684,709,262.50x = 369,795,709,405,219,264
  5. Step 5: Solve for x
    x = 369,795,709,405,219,264/684,709,262.50
  6. Step 6: Final answer
    x = 540,076,978.15

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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.