Home / 920,098,475.34-1,278,307,929.78-909,066,070.91

Finding the Fourth Proportional to 920,098,475.34, 1,278,307,929.78 and 909,066,070.91

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Solution

The fourth proportional to 920,098,475.34, 1,278,307,929.78 and 909,066,070.91 is: 1,262,980,429.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,098,475.34 : 1,278,307,929.78 = 909,066,070.91 : x
  2. Step 2: Convert to fraction form
    920,098,475.34/1,278,307,929.78 = 909,066,070.91/x
  3. Step 3: Cross multiply
    920,098,475.34x = 1,278,307,929.78 × 909,066,070.91
  4. Step 4: Simplify right side
    920,098,475.34x = 1,162,066,367,141,396,480
  5. Step 5: Solve for x
    x = 1,162,066,367,141,396,480/920,098,475.34
  6. Step 6: Final answer
    x = 1,262,980,429.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.