Home / 72,076,140.16-99,473,812.56-40,715,511.50

Finding the Fourth Proportional to 72,076,140.16, 99,473,812.56 and 40,715,511.50

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Solution

The fourth proportional to 72,076,140.16, 99,473,812.56 and 40,715,511.50 is: 56,192,342.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,076,140.16 : 99,473,812.56 = 40,715,511.50 : x
  2. Step 2: Convert to fraction form
    72,076,140.16/99,473,812.56 = 40,715,511.50/x
  3. Step 3: Cross multiply
    72,076,140.16x = 99,473,812.56 × 40,715,511.50
  4. Step 4: Simplify right side
    72,076,140.16x = 4,050,127,159,484,209
  5. Step 5: Solve for x
    x = 4,050,127,159,484,209/72,076,140.16
  6. Step 6: Final answer
    x = 56,192,342.58

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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.