Home / 853,878,063.88-1,178,478,112.26-540,641,343.88

Finding the Fourth Proportional to 853,878,063.88, 1,178,478,112.26 and 540,641,343.88

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Solution

The fourth proportional to 853,878,063.88, 1,178,478,112.26 and 540,641,343.88 is: 746,165,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,878,063.88 : 1,178,478,112.26 = 540,641,343.88 : x
  2. Step 2: Convert to fraction form
    853,878,063.88/1,178,478,112.26 = 540,641,343.88/x
  3. Step 3: Cross multiply
    853,878,063.88x = 1,178,478,112.26 × 540,641,343.88
  4. Step 4: Simplify right side
    853,878,063.88x = 637,133,990,345,411,840
  5. Step 5: Solve for x
    x = 637,133,990,345,411,840/853,878,063.88
  6. Step 6: Final answer
    x = 746,165,075.90

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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.