Finding the Fourth Proportional to 9,101,293,138.84, 12,559,277,904.95 and 5,031,959,581.05
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Solution
The fourth proportional to 9,101,293,138.84, 12,559,277,904.95 and 5,031,959,581.05 is: 6,943,824,116.06
Step by Step Solution
- Step 1: Write the proportion equation
9,101,293,138.84 : 12,559,277,904.95 = 5,031,959,581.05 : x - Step 2: Convert to fraction form
9,101,293,138.84/12,559,277,904.95 = 5,031,959,581.05/x - Step 3: Cross multiply
9,101,293,138.84x = 12,559,277,904.95 × 5,031,959,581.05 - Step 4: Simplify right side
9,101,293,138.84x = 63,197,778,784,870,187,008 - Step 5: Solve for x
x = 63,197,778,784,870,187,008/9,101,293,138.84 - Step 6: Final answer
x = 6,943,824,116.06
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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.