Home / 90,717,710.40-136,076,565.60-56,658,247.20

Finding the Fourth Proportional to 90,717,710.40, 136,076,565.60 and 56,658,247.20

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Solution

The fourth proportional to 90,717,710.40, 136,076,565.60 and 56,658,247.20 is: 84,987,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,717,710.40 : 136,076,565.60 = 56,658,247.20 : x
  2. Step 2: Convert to fraction form
    90,717,710.40/136,076,565.60 = 56,658,247.20/x
  3. Step 3: Cross multiply
    90,717,710.40x = 136,076,565.60 × 56,658,247.20
  4. Step 4: Simplify right side
    90,717,710.40x = 7,709,859,691,891,816
  5. Step 5: Solve for x
    x = 7,709,859,691,891,816/90,717,710.40
  6. Step 6: Final answer
    x = 84,987,370.80

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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.