Home / 134,830,483.95-186,013,124.53-78,305,607.28

Finding the Fourth Proportional to 134,830,483.95, 186,013,124.53 and 78,305,607.28

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Solution

The fourth proportional to 134,830,483.95, 186,013,124.53 and 78,305,607.28 is: 108,030,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,830,483.95 : 186,013,124.53 = 78,305,607.28 : x
  2. Step 2: Convert to fraction form
    134,830,483.95/186,013,124.53 = 78,305,607.28/x
  3. Step 3: Cross multiply
    134,830,483.95x = 186,013,124.53 × 78,305,607.28
  4. Step 4: Simplify right side
    134,830,483.95x = 14,565,870,678,371,914
  5. Step 5: Solve for x
    x = 14,565,870,678,371,914/134,830,483.95
  6. Step 6: Final answer
    x = 108,030,990.11

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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.