Home / 748,865,353.70-1,123,298,030.55-727,341,993.20

Finding the Fourth Proportional to 748,865,353.70, 1,123,298,030.55 and 727,341,993.20

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Solution

The fourth proportional to 748,865,353.70, 1,123,298,030.55 and 727,341,993.20 is: 1,091,012,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865,353.70 : 1,123,298,030.55 = 727,341,993.20 : x
  2. Step 2: Convert to fraction form
    748,865,353.70/1,123,298,030.55 = 727,341,993.20/x
  3. Step 3: Cross multiply
    748,865,353.70x = 1,123,298,030.55 × 727,341,993.20
  4. Step 4: Simplify right side
    748,865,353.70x = 817,021,828,497,871,488
  5. Step 5: Solve for x
    x = 817,021,828,497,871,488/748,865,353.70
  6. Step 6: Final answer
    x = 1,091,012,989.80

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1.5x scale

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.