Home / 127,939,643.80-191,909,465.70-73,520,085.40

Finding the Fourth Proportional to 127,939,643.80, 191,909,465.70 and 73,520,085.40

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Solution

The fourth proportional to 127,939,643.80, 191,909,465.70 and 73,520,085.40 is: 110,280,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939,643.80 : 191,909,465.70 = 73,520,085.40 : x
  2. Step 2: Convert to fraction form
    127,939,643.80/191,909,465.70 = 73,520,085.40/x
  3. Step 3: Cross multiply
    127,939,643.80x = 191,909,465.70 × 73,520,085.40
  4. Step 4: Simplify right side
    127,939,643.80x = 14,109,200,307,332,372
  5. Step 5: Solve for x
    x = 14,109,200,307,332,372/127,939,643.80
  6. Step 6: Final answer
    x = 110,280,128.10

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1.5x scale

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.