Home / 693,430,412.48-956,933,738.92-380,157,900.40

Finding the Fourth Proportional to 693,430,412.48, 956,933,738.92 and 380,157,900.40

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Solution

The fourth proportional to 693,430,412.48, 956,933,738.92 and 380,157,900.40 is: 524,617,776.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,430,412.48 : 956,933,738.92 = 380,157,900.40 : x
  2. Step 2: Convert to fraction form
    693,430,412.48/956,933,738.92 = 380,157,900.40/x
  3. Step 3: Cross multiply
    693,430,412.48x = 956,933,738.92 × 380,157,900.40
  4. Step 4: Simplify right side
    693,430,412.48x = 363,785,921,009,748,928
  5. Step 5: Solve for x
    x = 363,785,921,009,748,928/693,430,412.48
  6. Step 6: Final answer
    x = 524,617,776.29

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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.