Home / 157,464,193.05-236,196,289.58-128,742,759.45

Finding the Fourth Proportional to 157,464,193.05, 236,196,289.58 and 128,742,759.45

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Solution

The fourth proportional to 157,464,193.05, 236,196,289.58 and 128,742,759.45 is: 193,114,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,464,193.05 : 236,196,289.58 = 128,742,759.45 : x
  2. Step 2: Convert to fraction form
    157,464,193.05/236,196,289.58 = 128,742,759.45/x
  3. Step 3: Cross multiply
    157,464,193.05x = 236,196,289.58 × 128,742,759.45
  4. Step 4: Simplify right side
    157,464,193.05x = 30,408,562,091,736,768
  5. Step 5: Solve for x
    x = 30,408,562,091,736,768/157,464,193.05
  6. Step 6: Final answer
    x = 193,114,139.18

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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.