Home / 145,742,203.62-218,651,631.75-52,378,605

Finding the Fourth Proportional to 145,742,203.62, 218,651,631.75 and 52,378,605

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Solution

The fourth proportional to 145,742,203.62, 218,651,631.75 and 52,378,605 is: 78,581,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,742,203.62 : 218,651,631.75 = 52,378,605 : x
  2. Step 2: Convert to fraction form
    145,742,203.62/218,651,631.75 = 52,378,605/x
  3. Step 3: Cross multiply
    145,742,203.62x = 218,651,631.75 × 52,378,605
  4. Step 4: Simplify right side
    145,742,203.62x = 11,452,667,452,038,708
  5. Step 5: Solve for x
    x = 11,452,667,452,038,708/145,742,203.62
  6. Step 6: Final answer
    x = 78,581,681.68

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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.