Home / 190,678,979.90-286,021,127.15-54,364,363.40

Finding the Fourth Proportional to 190,678,979.90, 286,021,127.15 and 54,364,363.40

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Solution

The fourth proportional to 190,678,979.90, 286,021,127.15 and 54,364,363.40 is: 81,547,302.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,678,979.90 : 286,021,127.15 = 54,364,363.40 : x
  2. Step 2: Convert to fraction form
    190,678,979.90/286,021,127.15 = 54,364,363.40/x
  3. Step 3: Cross multiply
    190,678,979.90x = 286,021,127.15 × 54,364,363.40
  4. Step 4: Simplify right side
    190,678,979.90x = 15,549,356,496,460,204
  5. Step 5: Solve for x
    x = 15,549,356,496,460,204/190,678,979.90
  6. Step 6: Final answer
    x = 81,547,302.72

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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.