Home / 1,121,010,673.80-1,681,516,010.70-753,678,654.60

Finding the Fourth Proportional to 1,121,010,673.80, 1,681,516,010.70 and 753,678,654.60

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Solution

The fourth proportional to 1,121,010,673.80, 1,681,516,010.70 and 753,678,654.60 is: 1,130,517,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,010,673.80 : 1,681,516,010.70 = 753,678,654.60 : x
  2. Step 2: Convert to fraction form
    1,121,010,673.80/1,681,516,010.70 = 753,678,654.60/x
  3. Step 3: Cross multiply
    1,121,010,673.80x = 1,681,516,010.70 × 753,678,654.60
  4. Step 4: Simplify right side
    1,121,010,673.80x = 1,267,322,724,632,735,232
  5. Step 5: Solve for x
    x = 1,267,322,724,632,735,232/1,121,010,673.80
  6. Step 6: Final answer
    x = 1,130,517,981.90

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1.5x scale

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.