Home / 518,012,036,296.10-714,808,637,053.45-286,520,573,243.40

Finding the Fourth Proportional to 518,012,036,296.10, 714,808,637,053.45 and 286,520,573,243.40

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Solution

The fourth proportional to 518,012,036,296.10, 714,808,637,053.45 and 286,520,573,243.40 is: 395,371,856,438.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,012,036,296.10 : 714,808,637,053.45 = 286,520,573,243.40 : x
  2. Step 2: Convert to fraction form
    518,012,036,296.10/714,808,637,053.45 = 286,520,573,243.40/x
  3. Step 3: Cross multiply
    518,012,036,296.10x = 714,808,637,053.45 × 286,520,573,243.40
  4. Step 4: Simplify right side
    518,012,036,296.10x = 204,807,380,447,887,940,911,104
  5. Step 5: Solve for x
    x = 204,807,380,447,887,940,911,104/518,012,036,296.10
  6. Step 6: Final answer
    x = 395,371,856,438.52

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1.5x scale

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.