Home / 1,121,009,980.80-1,681,514,971.20-1,114,552,972.65

Finding the Fourth Proportional to 1,121,009,980.80, 1,681,514,971.20 and 1,114,552,972.65

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Solution

The fourth proportional to 1,121,009,980.80, 1,681,514,971.20 and 1,114,552,972.65 is: 1,671,829,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,009,980.80 : 1,681,514,971.20 = 1,114,552,972.65 : x
  2. Step 2: Convert to fraction form
    1,121,009,980.80/1,681,514,971.20 = 1,114,552,972.65/x
  3. Step 3: Cross multiply
    1,121,009,980.80x = 1,681,514,971.20 × 1,114,552,972.65
  4. Step 4: Simplify right side
    1,121,009,980.80x = 1,874,137,509,706,439,424
  5. Step 5: Solve for x
    x = 1,874,137,509,706,439,424/1,121,009,980.80
  6. Step 6: Final answer
    x = 1,671,829,458.98

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Double scale
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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.