Home / 518,012,036,268.07-714,808,637,014.95-286,520,573,215.48

Finding the Fourth Proportional to 518,012,036,268.07, 714,808,637,014.95 and 286,520,573,215.48

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Solution

The fourth proportional to 518,012,036,268.07, 714,808,637,014.95 and 286,520,573,215.48 is: 395,371,856,400.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,012,036,268.07 : 714,808,637,014.95 = 286,520,573,215.48 : x
  2. Step 2: Convert to fraction form
    518,012,036,268.07/714,808,637,014.95 = 286,520,573,215.48/x
  3. Step 3: Cross multiply
    518,012,036,268.07x = 714,808,637,014.95 × 286,520,573,215.48
  4. Step 4: Simplify right side
    518,012,036,268.07x = 204,807,380,416,899,416,326,144
  5. Step 5: Solve for x
    x = 204,807,380,416,899,416,326,144/518,012,036,268.07
  6. Step 6: Final answer
    x = 395,371,856,400.09

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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.