Home / 1,179,036,013.80-1,768,554,020.70-906,938,221.80

Finding the Fourth Proportional to 1,179,036,013.80, 1,768,554,020.70 and 906,938,221.80

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Solution

The fourth proportional to 1,179,036,013.80, 1,768,554,020.70 and 906,938,221.80 is: 1,360,407,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,036,013.80 : 1,768,554,020.70 = 906,938,221.80 : x
  2. Step 2: Convert to fraction form
    1,179,036,013.80/1,768,554,020.70 = 906,938,221.80/x
  3. Step 3: Cross multiply
    1,179,036,013.80x = 1,768,554,020.70 × 906,938,221.80
  4. Step 4: Simplify right side
    1,179,036,013.80x = 1,603,969,238,690,898,432
  5. Step 5: Solve for x
    x = 1,603,969,238,690,898,432/1,179,036,013.80
  6. Step 6: Final answer
    x = 1,360,407,332.70

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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.