Home / 78,390,700.40-117,578,448.74-23,803,758.74

Finding the Fourth Proportional to 78,390,700.40, 117,578,448.74 and 23,803,758.74

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Solution

The fourth proportional to 78,390,700.40, 117,578,448.74 and 23,803,758.74 is: 35,703,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,390,700.40 : 117,578,448.74 = 23,803,758.74 : x
  2. Step 2: Convert to fraction form
    78,390,700.40/117,578,448.74 = 23,803,758.74/x
  3. Step 3: Cross multiply
    78,390,700.40x = 117,578,448.74 × 23,803,758.74
  4. Step 4: Simplify right side
    78,390,700.40x = 2,798,809,026,830,416.50
  5. Step 5: Solve for x
    x = 2,798,809,026,830,416.50/78,390,700.40
  6. Step 6: Final answer
    x = 35,703,329.76

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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.