Home / 90,139,477.39-135,209,005.85-59,210,366.32

Finding the Fourth Proportional to 90,139,477.39, 135,209,005.85 and 59,210,366.32

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Solution

The fourth proportional to 90,139,477.39, 135,209,005.85 and 59,210,366.32 is: 88,815,411.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,139,477.39 : 135,209,005.85 = 59,210,366.32 : x
  2. Step 2: Convert to fraction form
    90,139,477.39/135,209,005.85 = 59,210,366.32/x
  3. Step 3: Cross multiply
    90,139,477.39x = 135,209,005.85 × 59,210,366.32
  4. Step 4: Simplify right side
    90,139,477.39x = 8,005,774,765,698,009
  5. Step 5: Solve for x
    x = 8,005,774,765,698,009/90,139,477.39
  6. Step 6: Final answer
    x = 88,815,411.37

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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.