Home / 153,670,337.96-212,065,700.88-83,105,946.68

Finding the Fourth Proportional to 153,670,337.96, 212,065,700.88 and 83,105,946.68

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Solution

The fourth proportional to 153,670,337.96, 212,065,700.88 and 83,105,946.68 is: 114,686,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,670,337.96 : 212,065,700.88 = 83,105,946.68 : x
  2. Step 2: Convert to fraction form
    153,670,337.96/212,065,700.88 = 83,105,946.68/x
  3. Step 3: Cross multiply
    153,670,337.96x = 212,065,700.88 × 83,105,946.68
  4. Step 4: Simplify right side
    153,670,337.96x = 17,623,920,829,990,110
  5. Step 5: Solve for x
    x = 17,623,920,829,990,110/153,670,337.96
  6. Step 6: Final answer
    x = 114,686,549.56

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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.