Home / 717,426,491.80-1,076,139,737.70-390,058,835.80

Finding the Fourth Proportional to 717,426,491.80, 1,076,139,737.70 and 390,058,835.80

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Solution

The fourth proportional to 717,426,491.80, 1,076,139,737.70 and 390,058,835.80 is: 585,088,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,426,491.80 : 1,076,139,737.70 = 390,058,835.80 : x
  2. Step 2: Convert to fraction form
    717,426,491.80/1,076,139,737.70 = 390,058,835.80/x
  3. Step 3: Cross multiply
    717,426,491.80x = 1,076,139,737.70 × 390,058,835.80
  4. Step 4: Simplify right side
    717,426,491.80x = 419,757,813,245,379,392
  5. Step 5: Solve for x
    x = 419,757,813,245,379,392/717,426,491.80
  6. Step 6: Final answer
    x = 585,088,253.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.