Home / 786,764,428.84-1,085,706,471.80-434,332,867.10

Finding the Fourth Proportional to 786,764,428.84, 1,085,706,471.80 and 434,332,867.10

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Solution

The fourth proportional to 786,764,428.84, 1,085,706,471.80 and 434,332,867.10 is: 599,363,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,764,428.84 : 1,085,706,471.80 = 434,332,867.10 : x
  2. Step 2: Convert to fraction form
    786,764,428.84/1,085,706,471.80 = 434,332,867.10/x
  3. Step 3: Cross multiply
    786,764,428.84x = 1,085,706,471.80 × 434,332,867.10
  4. Step 4: Simplify right side
    786,764,428.84x = 471,558,004,725,919,296
  5. Step 5: Solve for x
    x = 471,558,004,725,919,296/786,764,428.84
  6. Step 6: Final answer
    x = 599,363,656.31

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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.