Home / 105,186,172.70-145,154,133.60-58,776,807.98

Finding the Fourth Proportional to 105,186,172.70, 145,154,133.60 and 58,776,807.98

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Solution

The fourth proportional to 105,186,172.70, 145,154,133.60 and 58,776,807.98 is: 81,110,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,186,172.70 : 145,154,133.60 = 58,776,807.98 : x
  2. Step 2: Convert to fraction form
    105,186,172.70/145,154,133.60 = 58,776,807.98/x
  3. Step 3: Cross multiply
    105,186,172.70x = 145,154,133.60 × 58,776,807.98
  4. Step 4: Simplify right side
    105,186,172.70x = 8,531,696,638,110,465
  5. Step 5: Solve for x
    x = 8,531,696,638,110,465/105,186,172.70
  6. Step 6: Final answer
    x = 81,110,438.94

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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.