Home / 153,406,830.90-211,700,024.37-83,792,190.90

Finding the Fourth Proportional to 153,406,830.90, 211,700,024.37 and 83,792,190.90

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Solution

The fourth proportional to 153,406,830.90, 211,700,024.37 and 83,792,190.90 is: 115,632,457.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,406,830.90 : 211,700,024.37 = 83,792,190.90 : x
  2. Step 2: Convert to fraction form
    153,406,830.90/211,700,024.37 = 83,792,190.90/x
  3. Step 3: Cross multiply
    153,406,830.90x = 211,700,024.37 × 83,792,190.90
  4. Step 4: Simplify right side
    153,406,830.90x = 17,738,808,855,545,694
  5. Step 5: Solve for x
    x = 17,738,808,855,545,694/153,406,830.90
  6. Step 6: Final answer
    x = 115,632,457.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.