Home / 772,555,434.40-1,158,833,151.60-409,758,378.40

Finding the Fourth Proportional to 772,555,434.40, 1,158,833,151.60 and 409,758,378.40

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Solution

The fourth proportional to 772,555,434.40, 1,158,833,151.60 and 409,758,378.40 is: 614,637,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,555,434.40 : 1,158,833,151.60 = 409,758,378.40 : x
  2. Step 2: Convert to fraction form
    772,555,434.40/1,158,833,151.60 = 409,758,378.40/x
  3. Step 3: Cross multiply
    772,555,434.40x = 1,158,833,151.60 × 409,758,378.40
  4. Step 4: Simplify right side
    772,555,434.40x = 474,841,593,035,777,280
  5. Step 5: Solve for x
    x = 474,841,593,035,777,280/772,555,434.40
  6. Step 6: Final answer
    x = 614,637,567.60

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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.