Home / 191,140,987.20-286,823,455.20-69,984,686.40

Finding the Fourth Proportional to 191,140,987.20, 286,823,455.20 and 69,984,686.40

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Solution

The fourth proportional to 191,140,987.20, 286,823,455.20 and 69,984,686.40 is: 105,018,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,140,987.20 : 286,823,455.20 = 69,984,686.40 : x
  2. Step 2: Convert to fraction form
    191,140,987.20/286,823,455.20 = 69,984,686.40/x
  3. Step 3: Cross multiply
    191,140,987.20x = 286,823,455.20 × 69,984,686.40
  4. Step 4: Simplify right side
    191,140,987.20x = 20,073,249,564,336,452
  5. Step 5: Solve for x
    x = 20,073,249,564,336,452/191,140,987.20
  6. Step 6: Final answer
    x = 105,018,028.10

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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.