Home / 1,276,996,209.81-1,914,575,004.81-784,692,351.87

Finding the Fourth Proportional to 1,276,996,209.81, 1,914,575,004.81 and 784,692,351.87

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Solution

The fourth proportional to 1,276,996,209.81, 1,914,575,004.81 and 784,692,351.87 is: 1,176,473,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,996,209.81 : 1,914,575,004.81 = 784,692,351.87 : x
  2. Step 2: Convert to fraction form
    1,276,996,209.81/1,914,575,004.81 = 784,692,351.87/x
  3. Step 3: Cross multiply
    1,276,996,209.81x = 1,914,575,004.81 × 784,692,351.87
  4. Step 4: Simplify right side
    1,276,996,209.81x = 1,502,352,363,355,875,328
  5. Step 5: Solve for x
    x = 1,502,352,363,355,875,328/1,276,996,209.81
  6. Step 6: Final answer
    x = 1,176,473,627.58

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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.