Home / 1,120,367,780.10-1,679,417,929.35-660,069,015.30

Finding the Fourth Proportional to 1,120,367,780.10, 1,679,417,929.35 and 660,069,015.30

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Solution

The fourth proportional to 1,120,367,780.10, 1,679,417,929.35 and 660,069,015.30 is: 989,435,575.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,367,780.10 : 1,679,417,929.35 = 660,069,015.30 : x
  2. Step 2: Convert to fraction form
    1,120,367,780.10/1,679,417,929.35 = 660,069,015.30/x
  3. Step 3: Cross multiply
    1,120,367,780.10x = 1,679,417,929.35 × 660,069,015.30
  4. Step 4: Simplify right side
    1,120,367,780.10x = 1,108,531,738,903,219,328
  5. Step 5: Solve for x
    x = 1,108,531,738,903,219,328/1,120,367,780.10
  6. Step 6: Final answer
    x = 989,435,575.17

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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.