Home / 12,687,345.60-19,031,018.40-8,860,970.40

Finding the Fourth Proportional to 12,687,345.60, 19,031,018.40 and 8,860,970.40

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Solution

The fourth proportional to 12,687,345.60, 19,031,018.40 and 8,860,970.40 is: 13,291,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,345.60 : 19,031,018.40 = 8,860,970.40 : x
  2. Step 2: Convert to fraction form
    12,687,345.60/19,031,018.40 = 8,860,970.40/x
  3. Step 3: Cross multiply
    12,687,345.60x = 19,031,018.40 × 8,860,970.40
  4. Step 4: Simplify right side
    12,687,345.60x = 168,633,290,724,255.34
  5. Step 5: Solve for x
    x = 168,633,290,724,255.34/12,687,345.60
  6. Step 6: Final answer
    x = 13,291,455.60

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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.