Home / 70,009,000.10-105,013,500.15-60,435,188.90

Finding the Fourth Proportional to 70,009,000.10, 105,013,500.15 and 60,435,188.90

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Solution

The fourth proportional to 70,009,000.10, 105,013,500.15 and 60,435,188.90 is: 90,652,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,009,000.10 : 105,013,500.15 = 60,435,188.90 : x
  2. Step 2: Convert to fraction form
    70,009,000.10/105,013,500.15 = 60,435,188.90/x
  3. Step 3: Cross multiply
    70,009,000.10x = 105,013,500.15 × 60,435,188.90
  4. Step 4: Simplify right side
    70,009,000.10x = 6,346,510,718,615,429
  5. Step 5: Solve for x
    x = 6,346,510,718,615,429/70,009,000.10
  6. Step 6: Final answer
    x = 90,652,783.35

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1.5x scale

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.