Home / 265,034,509.96-397,594,864.64-78,307,400.20

Finding the Fourth Proportional to 265,034,509.96, 397,594,864.64 and 78,307,400.20

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Solution

The fourth proportional to 265,034,509.96, 397,594,864.64 and 78,307,400.20 is: 117,473,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,034,509.96 : 397,594,864.64 = 78,307,400.20 : x
  2. Step 2: Convert to fraction form
    265,034,509.96/397,594,864.64 = 78,307,400.20/x
  3. Step 3: Cross multiply
    265,034,509.96x = 397,594,864.64 × 78,307,400.20
  4. Step 4: Simplify right side
    265,034,509.96x = 31,134,620,182,829,308
  5. Step 5: Solve for x
    x = 31,134,620,182,829,308/265,034,509.96
  6. Step 6: Final answer
    x = 117,473,834.59

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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.