Home / 199,706,671.80-299,588,001.30-78,509,935.80

Finding the Fourth Proportional to 199,706,671.80, 299,588,001.30 and 78,509,935.80

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Solution

The fourth proportional to 199,706,671.80, 299,588,001.30 and 78,509,935.80 is: 117,775,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,706,671.80 : 299,588,001.30 = 78,509,935.80 : x
  2. Step 2: Convert to fraction form
    199,706,671.80/299,588,001.30 = 78,509,935.80/x
  3. Step 3: Cross multiply
    199,706,671.80x = 299,588,001.30 × 78,509,935.80
  4. Step 4: Simplify right side
    199,706,671.80x = 23,520,634,748,513,316
  5. Step 5: Solve for x
    x = 23,520,634,748,513,316/199,706,671.80
  6. Step 6: Final answer
    x = 117,775,908.72

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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.