Home / 907,287,890.40-1,360,931,835.60-261,055,634.40

Finding the Fourth Proportional to 907,287,890.40, 1,360,931,835.60 and 261,055,634.40

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Solution

The fourth proportional to 907,287,890.40, 1,360,931,835.60 and 261,055,634.40 is: 391,583,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,287,890.40 : 1,360,931,835.60 = 261,055,634.40 : x
  2. Step 2: Convert to fraction form
    907,287,890.40/1,360,931,835.60 = 261,055,634.40/x
  3. Step 3: Cross multiply
    907,287,890.40x = 1,360,931,835.60 × 261,055,634.40
  4. Step 4: Simplify right side
    907,287,890.40x = 355,278,923,717,714,496
  5. Step 5: Solve for x
    x = 355,278,923,717,714,496/907,287,890.40
  6. Step 6: Final answer
    x = 391,583,451.60

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1.5x scale

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.