Home / 786,687,746.94-1,085,689,182.15-434,331,603.90

Finding the Fourth Proportional to 786,687,746.94, 1,085,689,182.15 and 434,331,603.90

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Solution

The fourth proportional to 786,687,746.94, 1,085,689,182.15 and 434,331,603.90 is: 599,410,789.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,687,746.94 : 1,085,689,182.15 = 434,331,603.90 : x
  2. Step 2: Convert to fraction form
    786,687,746.94/1,085,689,182.15 = 434,331,603.90/x
  3. Step 3: Cross multiply
    786,687,746.94x = 1,085,689,182.15 × 434,331,603.90
  4. Step 4: Simplify right side
    786,687,746.94x = 471,549,123,820,088,768
  5. Step 5: Solve for x
    x = 471,549,123,820,088,768/786,687,746.94
  6. Step 6: Final answer
    x = 599,410,789.93

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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.