Home / 853,878,062.88-1,178,478,110.88-540,641,342.88

Finding the Fourth Proportional to 853,878,062.88, 1,178,478,110.88 and 540,641,342.88

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Solution

The fourth proportional to 853,878,062.88, 1,178,478,110.88 and 540,641,342.88 is: 746,165,074.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,878,062.88 : 1,178,478,110.88 = 540,641,342.88 : x
  2. Step 2: Convert to fraction form
    853,878,062.88/1,178,478,110.88 = 540,641,342.88/x
  3. Step 3: Cross multiply
    853,878,062.88x = 1,178,478,110.88 × 540,641,342.88
  4. Step 4: Simplify right side
    853,878,062.88x = 637,133,988,420,848,768
  5. Step 5: Solve for x
    x = 637,133,988,420,848,768/853,878,062.88
  6. Step 6: Final answer
    x = 746,165,074.52

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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.