Home / 817,360,894.82-1,225,997,387.58-402,424,064.30

Finding the Fourth Proportional to 817,360,894.82, 1,225,997,387.58 and 402,424,064.30

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Solution

The fourth proportional to 817,360,894.82, 1,225,997,387.58 and 402,424,064.30 is: 603,614,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,360,894.82 : 1,225,997,387.58 = 402,424,064.30 : x
  2. Step 2: Convert to fraction form
    817,360,894.82/1,225,997,387.58 = 402,424,064.30/x
  3. Step 3: Cross multiply
    817,360,894.82x = 1,225,997,387.58 × 402,424,064.30
  4. Step 4: Simplify right side
    817,360,894.82x = 493,370,851,531,125,952
  5. Step 5: Solve for x
    x = 493,370,851,531,125,952/817,360,894.82
  6. Step 6: Final answer
    x = 603,614,455.57

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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.