Home / 847,128,509.76-1,168,674,713.21-529,036,520.67

Finding the Fourth Proportional to 847,128,509.76, 1,168,674,713.21 and 529,036,520.67

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Solution

The fourth proportional to 847,128,509.76, 1,168,674,713.21 and 529,036,520.67 is: 729,843,933.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,128,509.76 : 1,168,674,713.21 = 529,036,520.67 : x
  2. Step 2: Convert to fraction form
    847,128,509.76/1,168,674,713.21 = 529,036,520.67/x
  3. Step 3: Cross multiply
    847,128,509.76x = 1,168,674,713.21 × 529,036,520.67
  4. Step 4: Simplify right side
    847,128,509.76x = 618,271,604,065,785,216
  5. Step 5: Solve for x
    x = 618,271,604,065,785,216/847,128,509.76
  6. Step 6: Final answer
    x = 729,843,933.88

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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.