Home / 242,712,071.40-364,068,107.10-81,154,007.40

Finding the Fourth Proportional to 242,712,071.40, 364,068,107.10 and 81,154,007.40

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Solution

The fourth proportional to 242,712,071.40, 364,068,107.10 and 81,154,007.40 is: 121,731,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,712,071.40 : 364,068,107.10 = 81,154,007.40 : x
  2. Step 2: Convert to fraction form
    242,712,071.40/364,068,107.10 = 81,154,007.40/x
  3. Step 3: Cross multiply
    242,712,071.40x = 364,068,107.10 × 81,154,007.40
  4. Step 4: Simplify right side
    242,712,071.40x = 29,545,585,857,697,396
  5. Step 5: Solve for x
    x = 29,545,585,857,697,396/242,712,071.40
  6. Step 6: Final answer
    x = 121,731,011.10

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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.