Home / 288,698,735.40-433,048,103.10-84,247,477.80

Finding the Fourth Proportional to 288,698,735.40, 433,048,103.10 and 84,247,477.80

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Solution

The fourth proportional to 288,698,735.40, 433,048,103.10 and 84,247,477.80 is: 126,371,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,698,735.40 : 433,048,103.10 = 84,247,477.80 : x
  2. Step 2: Convert to fraction form
    288,698,735.40/433,048,103.10 = 84,247,477.80/x
  3. Step 3: Cross multiply
    288,698,735.40x = 433,048,103.10 × 84,247,477.80
  4. Step 4: Simplify right side
    288,698,735.40x = 36,483,210,452,249,360
  5. Step 5: Solve for x
    x = 36,483,210,452,249,360/288,698,735.40
  6. Step 6: Final answer
    x = 126,371,216.70

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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.