Home / 168,019,698.40-252,029,547.60-72,468,210.40

Finding the Fourth Proportional to 168,019,698.40, 252,029,547.60 and 72,468,210.40

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Solution

The fourth proportional to 168,019,698.40, 252,029,547.60 and 72,468,210.40 is: 108,702,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,019,698.40 : 252,029,547.60 = 72,468,210.40 : x
  2. Step 2: Convert to fraction form
    168,019,698.40/252,029,547.60 = 72,468,210.40/x
  3. Step 3: Cross multiply
    168,019,698.40x = 252,029,547.60 × 72,468,210.40
  4. Step 4: Simplify right side
    168,019,698.40x = 18,264,130,282,493,616
  5. Step 5: Solve for x
    x = 18,264,130,282,493,616/168,019,698.40
  6. Step 6: Final answer
    x = 108,702,315.60

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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.