Home / 1,561,931,878.88-2,155,460,077.80-857,095,653.08

Finding the Fourth Proportional to 1,561,931,878.88, 2,155,460,077.80 and 857,095,653.08

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Solution

The fourth proportional to 1,561,931,878.88, 2,155,460,077.80 and 857,095,653.08 is: 1,182,788,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,931,878.88 : 2,155,460,077.80 = 857,095,653.08 : x
  2. Step 2: Convert to fraction form
    1,561,931,878.88/2,155,460,077.80 = 857,095,653.08/x
  3. Step 3: Cross multiply
    1,561,931,878.88x = 2,155,460,077.80 × 857,095,653.08
  4. Step 4: Simplify right side
    1,561,931,878.88x = 1,847,435,463,069,858,816
  5. Step 5: Solve for x
    x = 1,847,435,463,069,858,816/1,561,931,878.88
  6. Step 6: Final answer
    x = 1,182,788,755.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.