Home / 212,955,984.66-319,402,007.60-67,370,629.40

Finding the Fourth Proportional to 212,955,984.66, 319,402,007.60 and 67,370,629.40

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Solution

The fourth proportional to 212,955,984.66, 319,402,007.60 and 67,370,629.40 is: 101,045,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,955,984.66 : 319,402,007.60 = 67,370,629.40 : x
  2. Step 2: Convert to fraction form
    212,955,984.66/319,402,007.60 = 67,370,629.40/x
  3. Step 3: Cross multiply
    212,955,984.66x = 319,402,007.60 × 67,370,629.40
  4. Step 4: Simplify right side
    212,955,984.66x = 21,518,314,282,038,572
  5. Step 5: Solve for x
    x = 21,518,314,282,038,572/212,955,984.66
  6. Step 6: Final answer
    x = 101,045,830.28

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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.