Home / 96,901,345.20-145,219,307.40-78,985,441.20

Finding the Fourth Proportional to 96,901,345.20, 145,219,307.40 and 78,985,441.20

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Solution

The fourth proportional to 96,901,345.20, 145,219,307.40 and 78,985,441.20 is: 118,369,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,901,345.20 : 145,219,307.40 = 78,985,441.20 : x
  2. Step 2: Convert to fraction form
    96,901,345.20/145,219,307.40 = 78,985,441.20/x
  3. Step 3: Cross multiply
    96,901,345.20x = 145,219,307.40 × 78,985,441.20
  4. Step 4: Simplify right side
    96,901,345.20x = 11,470,211,065,747,426
  5. Step 5: Solve for x
    x = 11,470,211,065,747,426/96,901,345.20
  6. Step 6: Final answer
    x = 118,369,987.97

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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.