Home / 130,808,805,011.85-180,549,737,717.24-85,196,741,578.06

Finding the Fourth Proportional to 130,808,805,011.85, 180,549,737,717.24 and 85,196,741,578.06

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Solution

The fourth proportional to 130,808,805,011.85, 180,549,737,717.24 and 85,196,741,578.06 is: 117,593,378,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,808,805,011.85 : 180,549,737,717.24 = 85,196,741,578.06 : x
  2. Step 2: Convert to fraction form
    130,808,805,011.85/180,549,737,717.24 = 85,196,741,578.06/x
  3. Step 3: Cross multiply
    130,808,805,011.85x = 180,549,737,717.24 × 85,196,741,578.06
  4. Step 4: Simplify right side
    130,808,805,011.85x = 15,382,249,346,282,207,313,920
  5. Step 5: Solve for x
    x = 15,382,249,346,282,207,313,920/130,808,805,011.85
  6. Step 6: Final answer
    x = 117,593,378,709.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.