Home / 74,643,812.10-111,965,718.15-42,358,771.35

Finding the Fourth Proportional to 74,643,812.10, 111,965,718.15 and 42,358,771.35

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Solution

The fourth proportional to 74,643,812.10, 111,965,718.15 and 42,358,771.35 is: 63,538,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,643,812.10 : 111,965,718.15 = 42,358,771.35 : x
  2. Step 2: Convert to fraction form
    74,643,812.10/111,965,718.15 = 42,358,771.35/x
  3. Step 3: Cross multiply
    74,643,812.10x = 111,965,718.15 × 42,358,771.35
  4. Step 4: Simplify right side
    74,643,812.10x = 4,742,730,254,154,395
  5. Step 5: Solve for x
    x = 4,742,730,254,154,395/74,643,812.10
  6. Step 6: Final answer
    x = 63,538,157.03

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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.