Home / 790,565,776.59-1,090,980,750.04-438,194,707.28

Finding the Fourth Proportional to 790,565,776.59, 1,090,980,750.04 and 438,194,707.28

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Solution

The fourth proportional to 790,565,776.59, 1,090,980,750.04 and 438,194,707.28 is: 604,708,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,565,776.59 : 1,090,980,750.04 = 438,194,707.28 : x
  2. Step 2: Convert to fraction form
    790,565,776.59/1,090,980,750.04 = 438,194,707.28/x
  3. Step 3: Cross multiply
    790,565,776.59x = 1,090,980,750.04 × 438,194,707.28
  4. Step 4: Simplify right side
    790,565,776.59x = 478,061,990,409,433,408
  5. Step 5: Solve for x
    x = 478,061,990,409,433,408/790,565,776.59
  6. Step 6: Final answer
    x = 604,708,684.04

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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.