Home / 164,989,345.20-247,484,017.80-74,290,081.20

Finding the Fourth Proportional to 164,989,345.20, 247,484,017.80 and 74,290,081.20

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Solution

The fourth proportional to 164,989,345.20, 247,484,017.80 and 74,290,081.20 is: 111,435,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,989,345.20 : 247,484,017.80 = 74,290,081.20 : x
  2. Step 2: Convert to fraction form
    164,989,345.20/247,484,017.80 = 74,290,081.20/x
  3. Step 3: Cross multiply
    164,989,345.20x = 247,484,017.80 × 74,290,081.20
  4. Step 4: Simplify right side
    164,989,345.20x = 18,385,607,778,064,248
  5. Step 5: Solve for x
    x = 18,385,607,778,064,248/164,989,345.20
  6. Step 6: Final answer
    x = 111,435,121.80

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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.