Home / 909,088,693.59-1,254,541,856.54-491,400,985.35

Finding the Fourth Proportional to 909,088,693.59, 1,254,541,856.54 and 491,400,985.35

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Solution

The fourth proportional to 909,088,693.59, 1,254,541,856.54 and 491,400,985.35 is: 678,133,067.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,088,693.59 : 1,254,541,856.54 = 491,400,985.35 : x
  2. Step 2: Convert to fraction form
    909,088,693.59/1,254,541,856.54 = 491,400,985.35/x
  3. Step 3: Cross multiply
    909,088,693.59x = 1,254,541,856.54 × 491,400,985.35
  4. Step 4: Simplify right side
    909,088,693.59x = 616,483,104,466,574,336
  5. Step 5: Solve for x
    x = 616,483,104,466,574,336/909,088,693.59
  6. Step 6: Final answer
    x = 678,133,067.56

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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.