Home / 191,376,138.40-287,064,207.60-168,701,322.40

Finding the Fourth Proportional to 191,376,138.40, 287,064,207.60 and 168,701,322.40

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Solution

The fourth proportional to 191,376,138.40, 287,064,207.60 and 168,701,322.40 is: 253,051,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,376,138.40 : 287,064,207.60 = 168,701,322.40 : x
  2. Step 2: Convert to fraction form
    191,376,138.40/287,064,207.60 = 168,701,322.40/x
  3. Step 3: Cross multiply
    191,376,138.40x = 287,064,207.60 × 168,701,322.40
  4. Step 4: Simplify right side
    191,376,138.40x = 48,428,111,435,828,136
  5. Step 5: Solve for x
    x = 48,428,111,435,828,136/191,376,138.40
  6. Step 6: Final answer
    x = 253,051,983.60

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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.