Home / 286,109,471,981.40-429,164,207,972.10-87,362,442,259.80

Finding the Fourth Proportional to 286,109,471,981.40, 429,164,207,972.10 and 87,362,442,259.80

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Solution

The fourth proportional to 286,109,471,981.40, 429,164,207,972.10 and 87,362,442,259.80 is: 131,043,663,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,109,471,981.40 : 429,164,207,972.10 = 87,362,442,259.80 : x
  2. Step 2: Convert to fraction form
    286,109,471,981.40/429,164,207,972.10 = 87,362,442,259.80/x
  3. Step 3: Cross multiply
    286,109,471,981.40x = 429,164,207,972.10 × 87,362,442,259.80
  4. Step 4: Simplify right side
    286,109,471,981.40x = 37,492,833,338,935,386,046,464
  5. Step 5: Solve for x
    x = 37,492,833,338,935,386,046,464/286,109,471,981.40
  6. Step 6: Final answer
    x = 131,043,663,389.70

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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.