Home / 977,703,129.76-1,349,203,413.72-537,669,981.76

Finding the Fourth Proportional to 977,703,129.76, 1,349,203,413.72 and 537,669,981.76

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Solution

The fourth proportional to 977,703,129.76, 1,349,203,413.72 and 537,669,981.76 is: 741,969,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,703,129.76 : 1,349,203,413.72 = 537,669,981.76 : x
  2. Step 2: Convert to fraction form
    977,703,129.76/1,349,203,413.72 = 537,669,981.76/x
  3. Step 3: Cross multiply
    977,703,129.76x = 1,349,203,413.72 × 537,669,981.76
  4. Step 4: Simplify right side
    977,703,129.76x = 725,426,174,845,362,176
  5. Step 5: Solve for x
    x = 725,426,174,845,362,176/977,703,129.76
  6. Step 6: Final answer
    x = 741,969,778.72

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Double scale
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1.5x scale

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.