Home / 868,971,165.63-1,303,334,025.02-278,684,701.34

Finding the Fourth Proportional to 868,971,165.63, 1,303,334,025.02 and 278,684,701.34

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Solution

The fourth proportional to 868,971,165.63, 1,303,334,025.02 and 278,684,701.34 is: 417,987,693.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,971,165.63 : 1,303,334,025.02 = 278,684,701.34 : x
  2. Step 2: Convert to fraction form
    868,971,165.63/1,303,334,025.02 = 278,684,701.34/x
  3. Step 3: Cross multiply
    868,971,165.63x = 1,303,334,025.02 × 278,684,701.34
  4. Step 4: Simplify right side
    868,971,165.63x = 363,219,253,513,094,784
  5. Step 5: Solve for x
    x = 363,219,253,513,094,784/868,971,165.63
  6. Step 6: Final answer
    x = 417,987,693.82

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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.