Home / 12,445,547.80-18,668,321.70-2,989,931.80

Finding the Fourth Proportional to 12,445,547.80, 18,668,321.70 and 2,989,931.80

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Solution

The fourth proportional to 12,445,547.80, 18,668,321.70 and 2,989,931.80 is: 4,484,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445,547.80 : 18,668,321.70 = 2,989,931.80 : x
  2. Step 2: Convert to fraction form
    12,445,547.80/18,668,321.70 = 2,989,931.80/x
  3. Step 3: Cross multiply
    12,445,547.80x = 18,668,321.70 × 2,989,931.80
  4. Step 4: Simplify right side
    12,445,547.80x = 55,817,008,703,460.05
  5. Step 5: Solve for x
    x = 55,817,008,703,460.05/12,445,547.80
  6. Step 6: Final answer
    x = 4,484,897.70

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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.