Home / 914,729,509.52-1,262,323,974.84-497,043,069.20

Finding the Fourth Proportional to 914,729,509.52, 1,262,323,974.84 and 497,043,069.20

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Solution

The fourth proportional to 914,729,509.52, 1,262,323,974.84 and 497,043,069.20 is: 685,917,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,729,509.52 : 1,262,323,974.84 = 497,043,069.20 : x
  2. Step 2: Convert to fraction form
    914,729,509.52/1,262,323,974.84 = 497,043,069.20/x
  3. Step 3: Cross multiply
    914,729,509.52x = 1,262,323,974.84 × 497,043,069.20
  4. Step 4: Simplify right side
    914,729,509.52x = 627,429,382,779,217,152
  5. Step 5: Solve for x
    x = 627,429,382,779,217,152/914,729,509.52
  6. Step 6: Final answer
    x = 685,917,942.13

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1.5x scale

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.