Home / 1,249,378,348.80-1,872,792,064.80-731,542,238.40

Finding the Fourth Proportional to 1,249,378,348.80, 1,872,792,064.80 and 731,542,238.40

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Solution

The fourth proportional to 1,249,378,348.80, 1,872,792,064.80 and 731,542,238.40 is: 1,096,566,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,378,348.80 : 1,872,792,064.80 = 731,542,238.40 : x
  2. Step 2: Convert to fraction form
    1,249,378,348.80/1,872,792,064.80 = 731,542,238.40/x
  3. Step 3: Cross multiply
    1,249,378,348.80x = 1,872,792,064.80 × 731,542,238.40
  4. Step 4: Simplify right side
    1,249,378,348.80x = 1,370,026,499,141,549,824
  5. Step 5: Solve for x
    x = 1,370,026,499,141,549,824/1,249,378,348.80
  6. Step 6: Final answer
    x = 1,096,566,544.84

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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.