Home / 84,989,346.90-127,484,020.35-66,495,200.10

Finding the Fourth Proportional to 84,989,346.90, 127,484,020.35 and 66,495,200.10

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Solution

The fourth proportional to 84,989,346.90, 127,484,020.35 and 66,495,200.10 is: 99,742,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,989,346.90 : 127,484,020.35 = 66,495,200.10 : x
  2. Step 2: Convert to fraction form
    84,989,346.90/127,484,020.35 = 66,495,200.10/x
  3. Step 3: Cross multiply
    84,989,346.90x = 127,484,020.35 × 66,495,200.10
  4. Step 4: Simplify right side
    84,989,346.90x = 8,477,075,442,725,722
  5. Step 5: Solve for x
    x = 8,477,075,442,725,722/84,989,346.90
  6. Step 6: Final answer
    x = 99,742,800.15

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Double scale
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Similar ratio
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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.