Home / 97,920,005.20-146,880,007.80-87,338,424.40

Finding the Fourth Proportional to 97,920,005.20, 146,880,007.80 and 87,338,424.40

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Solution

The fourth proportional to 97,920,005.20, 146,880,007.80 and 87,338,424.40 is: 131,007,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,920,005.20 : 146,880,007.80 = 87,338,424.40 : x
  2. Step 2: Convert to fraction form
    97,920,005.20/146,880,007.80 = 87,338,424.40/x
  3. Step 3: Cross multiply
    97,920,005.20x = 146,880,007.80 × 87,338,424.40
  4. Step 4: Simplify right side
    97,920,005.20x = 12,828,268,457,111,712
  5. Step 5: Solve for x
    x = 12,828,268,457,111,712/97,920,005.20
  6. Step 6: Final answer
    x = 131,007,636.60

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1.5x scale

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.