Home / 145,019,842.91-199,746,155.52-111,465,155.01

Finding the Fourth Proportional to 145,019,842.91, 199,746,155.52 and 111,465,155.01

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Solution

The fourth proportional to 145,019,842.91, 199,746,155.52 and 111,465,155.01 is: 153,528,894.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,019,842.91 : 199,746,155.52 = 111,465,155.01 : x
  2. Step 2: Convert to fraction form
    145,019,842.91/199,746,155.52 = 111,465,155.01/x
  3. Step 3: Cross multiply
    145,019,842.91x = 199,746,155.52 × 111,465,155.01
  4. Step 4: Simplify right side
    145,019,842.91x = 22,264,736,187,314,844
  5. Step 5: Solve for x
    x = 22,264,736,187,314,844/145,019,842.91
  6. Step 6: Final answer
    x = 153,528,894.67

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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.