Home / 970,220,859.40-1,455,331,289.10-740,638,347.40

Finding the Fourth Proportional to 970,220,859.40, 1,455,331,289.10 and 740,638,347.40

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Solution

The fourth proportional to 970,220,859.40, 1,455,331,289.10 and 740,638,347.40 is: 1,110,957,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,220,859.40 : 1,455,331,289.10 = 740,638,347.40 : x
  2. Step 2: Convert to fraction form
    970,220,859.40/1,455,331,289.10 = 740,638,347.40/x
  3. Step 3: Cross multiply
    970,220,859.40x = 1,455,331,289.10 × 740,638,347.40
  4. Step 4: Simplify right side
    970,220,859.40x = 1,077,874,160,878,535,552
  5. Step 5: Solve for x
    x = 1,077,874,160,878,535,552/970,220,859.40
  6. Step 6: Final answer
    x = 1,110,957,521.10

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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.