Home / 717,426,488.30-1,076,139,732.45-390,058,832.30

Finding the Fourth Proportional to 717,426,488.30, 1,076,139,732.45 and 390,058,832.30

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Solution

The fourth proportional to 717,426,488.30, 1,076,139,732.45 and 390,058,832.30 is: 585,088,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,426,488.30 : 1,076,139,732.45 = 390,058,832.30 : x
  2. Step 2: Convert to fraction form
    717,426,488.30/1,076,139,732.45 = 390,058,832.30/x
  3. Step 3: Cross multiply
    717,426,488.30x = 1,076,139,732.45 × 390,058,832.30
  4. Step 4: Simplify right side
    717,426,488.30x = 419,757,807,431,081,472
  5. Step 5: Solve for x
    x = 419,757,807,431,081,472/717,426,488.30
  6. Step 6: Final answer
    x = 585,088,248.45

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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.