Home / 66,078,005.70-99,117,008.55-40,249,973.10

Finding the Fourth Proportional to 66,078,005.70, 99,117,008.55 and 40,249,973.10

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Solution

The fourth proportional to 66,078,005.70, 99,117,008.55 and 40,249,973.10 is: 60,374,959.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,078,005.70 : 99,117,008.55 = 40,249,973.10 : x
  2. Step 2: Convert to fraction form
    66,078,005.70/99,117,008.55 = 40,249,973.10/x
  3. Step 3: Cross multiply
    66,078,005.70x = 99,117,008.55 × 40,249,973.10
  4. Step 4: Simplify right side
    66,078,005.70x = 3,989,456,927,889,970
  5. Step 5: Solve for x
    x = 3,989,456,927,889,970/66,078,005.70
  6. Step 6: Final answer
    x = 60,374,959.65

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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.