Finding the Fourth Proportional to 989,864,372.70, 1,484,796,559.05 and 886,552,242.30
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Solution
The fourth proportional to 989,864,372.70, 1,484,796,559.05 and 886,552,242.30 is: 1,329,828,363.45
Step by Step Solution
- Step 1: Write the proportion equation
989,864,372.70 : 1,484,796,559.05 = 886,552,242.30 : x - Step 2: Convert to fraction form
989,864,372.70/1,484,796,559.05 = 886,552,242.30/x - Step 3: Cross multiply
989,864,372.70x = 1,484,796,559.05 × 886,552,242.30 - Step 4: Simplify right side
989,864,372.70x = 1,316,349,718,785,101,824 - Step 5: Solve for x
x = 1,316,349,718,785,101,824/989,864,372.70 - Step 6: Final answer
x = 1,329,828,363.45
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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.