Home / 130,808,805,044.89-180,549,737,762.71-85,196,741,611.05

Finding the Fourth Proportional to 130,808,805,044.89, 180,549,737,762.71 and 85,196,741,611.05

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Solution

The fourth proportional to 130,808,805,044.89, 180,549,737,762.71 and 85,196,741,611.05 is: 117,593,378,754.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,808,805,044.89 : 180,549,737,762.71 = 85,196,741,611.05 : x
  2. Step 2: Convert to fraction form
    130,808,805,044.89/180,549,737,762.71 = 85,196,741,611.05/x
  3. Step 3: Cross multiply
    130,808,805,044.89x = 180,549,737,762.71 × 85,196,741,611.05
  4. Step 4: Simplify right side
    130,808,805,044.89x = 15,382,249,356,112,439,541,760
  5. Step 5: Solve for x
    x = 15,382,249,356,112,439,541,760/130,808,805,044.89
  6. Step 6: Final answer
    x = 117,593,378,754.85

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1.5x scale

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.