Finding the Fourth Proportional to 626,603,721.83, 864,736,472.70 and 375,748,955.21
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Solution
The fourth proportional to 626,603,721.83, 864,736,472.70 and 375,748,955.21 is: 518,547,552.18
Step by Step Solution
- Step 1: Write the proportion equation
626,603,721.83 : 864,736,472.70 = 375,748,955.21 : x - Step 2: Convert to fraction form
626,603,721.83/864,736,472.70 = 375,748,955.21/x - Step 3: Cross multiply
626,603,721.83x = 864,736,472.70 × 375,748,955.21 - Step 4: Simplify right side
626,603,721.83x = 324,923,826,145,246,976 - Step 5: Solve for x
x = 324,923,826,145,246,976/626,603,721.83 - Step 6: Final answer
x = 518,547,552.18
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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.