Home / 665,549,289,911.52-918,380,535,750.84-372,590,254,723.32

Finding the Fourth Proportional to 665,549,289,911.52, 918,380,535,750.84 and 372,590,254,723.32

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Solution

The fourth proportional to 665,549,289,911.52, 918,380,535,750.84 and 372,590,254,723.32 is: 514,131,173,956.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,549,289,911.52 : 918,380,535,750.84 = 372,590,254,723.32 : x
  2. Step 2: Convert to fraction form
    665,549,289,911.52/918,380,535,750.84 = 372,590,254,723.32/x
  3. Step 3: Cross multiply
    665,549,289,911.52x = 918,380,535,750.84 × 372,590,254,723.32
  4. Step 4: Simplify right side
    665,549,289,911.52x = 342,179,637,748,344,589,123,584
  5. Step 5: Solve for x
    x = 342,179,637,748,344,589,123,584/665,549,289,911.52
  6. Step 6: Final answer
    x = 514,131,173,956.83

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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.