Home / 1,065,710,094.45-1,470,605,271.13-619,641,811.20

Finding the Fourth Proportional to 1,065,710,094.45, 1,470,605,271.13 and 619,641,811.20

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Solution

The fourth proportional to 1,065,710,094.45, 1,470,605,271.13 and 619,641,811.20 is: 855,062,289.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,710,094.45 : 1,470,605,271.13 = 619,641,811.20 : x
  2. Step 2: Convert to fraction form
    1,065,710,094.45/1,470,605,271.13 = 619,641,811.20/x
  3. Step 3: Cross multiply
    1,065,710,094.45x = 1,470,605,271.13 × 619,641,811.20
  4. Step 4: Simplify right side
    1,065,710,094.45x = 911,248,513,769,518,720
  5. Step 5: Solve for x
    x = 911,248,513,769,518,720/1,065,710,094.45
  6. Step 6: Final answer
    x = 855,062,289.94

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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.